If you check out the curriculum, you are taught that in that period. However, the majority of what you're taught is fighting from the guard, dealing with side control, and how to escape bad positions. You're not going to be better at throws or takedowns than wrestlers and Judoka, but you'll be more than capable of taking down or throwing the average person. We make up for being worse at throws and takedowns by being better on the ground. I was tapping brown and black belt judo players as an advanced blue belt, that's how advanced BJJ ground grappling is. However, its foolish to not believe that there's not extensive cross-training going on between the major grappling systems and MMA. My old BJJ school offered Judo classes taught by a 5th dan Black belt for example.
I have issues with kneeling starts, and Tony stated them better than I could.
The point is that you should be able to take people down. The problem is that sport Bjj is a huge money maker for schools, and guard pulling and jumping guard are stupidly efficient and effective takedowns. That's the go-to for any BJJ player that has to deal with a better stand-up grappler, and bjj sport rules completely facilitate it.
That Relson school I linked to is probably getting murdered money wise by the sport-based BJJ schools in the area.