Absolutely! However, look at the BJJ world in general and look hard and you will see the big business it has become. When I started training in BJJ there were no white belt stripes, no tests you just rolled at a seminar and if your instructor had recommended you then you were promoted. Usually it was two, three years or more. Now in recent years I have had blue belts show up at my schools with around a year in training and their technique well it was pretty poor compared to previous years. Plus there was no thing as a kid's jiujitsu class. Now a days in several bjj schools I have been to recently they reminded me more of a McDojo or they were heading down that path. Mind you not all places are like this but they are becoming more frequent. So organizatioin can be good but.... it can also have some negative consequences too. One only needs to look at say the ATA to see this!
I think you're associating arbitrary and/or innocent things with a deterioration of standards, and then attributing those things to organizations. In general, where organizations are involved, I think that much of the success or failure lies with the competence and vision of the individuals involved. A well run, well led organization will be good for the group.
First, though, I won't argue that a deterioration of standards is occurring. Honestly, I don't know enough to say. I have seen little of it in the local area, but have also seen my first BJJ mcdojo, too (complete with birthday parties).
The questions are whether everything you've listed is bad and is contributing to this slip in standards AND whether these things (good or bad) can be attributed to a larger organization. I'll go through some of the things you mention.
First, kids classes have existed in BJJ since forever in Brazil. There are several excellent kids programs in my area. Every single elite competitor started as a youngster. BJJ is still relatively young in the USA. Less than 20 years for the most part, with most of the expansion in schools having occurred within the last 10. It stands to reason that establishing some good kids programs would take a while in the States. I don't have any problem with kids programs, in general, and believe that they can be VERY positive and helpful. But good or bad, how can this be attributed to the IBJJF?
Stripes on belts... that's really a non-issue for me. With 1 to 3 years between belt promotions, there can be a very big difference between, say, a brand new blue belt and one who's worn it for 2 years. I'm an entirely different grappler than I was 2 years ago putting my blue belt on for the first time. But if my instructor didn't use them, I wouldn't miss them at all. It's just not a big deal, and IMO, not an indication of bad organizational control. The IBJJF doesn't have anything to do with this.
BJJ is big business, and I won't deny that. But that's going to happen with or without a large organization. The key question for me is whether the organization is steering the ship in a positive way or a negative way.
I think, overall, the IBJJF is very good for BJJ. The Pan Ams and Mundials are well run tournaments running thousands of matches safely and efficiently. The ruleset is very clear. The belt structure, weight classes and age brackets make sense. The changes that they make seem well considered and don't unduly interfere with local instruction.
Outside the IBJJF, most of the issues that might arise are a result of local affiliation. Gracie Barra is the largest BJJ affiliation in the world, and overall, they run great schools with a structured curriculum. I'm a part of Lotus Club. Much smaller, but also with good schools and strong competitive records. Giva Santana is my coach's coach, and he's top teir. Alliance, Braja, CheckMat, Gracie Humaita... there are tons.
With the growth of any style, there are going to be frauds and charlatans, but I just don't see exclusivity as being a positive or a negative. It just is. Seeing more BJJ blue belts (and black belts), IMO, is simply a reflection of the popularity of the style. Implying that a belt rank is worth less simply because more people train in the style just doesn't logically follow.
My instructor just promoted his first two black belts a few weeks ago. One guy has trained for 10 years and the other for almost 14. On the other hand, he has a brown belt he promoted who has been training for just over 4. All three are very well deserved.