I'm coming in late on this one.
However. Over at another forum I will not name.
If you mention TKD over there as a form of SD.. you'll get your hiny reamed for even breathing or thinking such. BJJ is like a pagan god over there, and the end all be all. So its rather funny to me, that over here it seems that its the opposite in a way..
To me, there is an art for all occasions.
I chose TKD knowing that i would be getting little to no ground training. I am perfectly fine with this, and I know that if I want to fight on the ground I need to learn something else. Now BJJ would probably not be my choice, simply because of all the MMA hype it has received. But I do not doubt its effectiveness. I however, believe all other forms of ground arts can be just as effective if trained correctly. Just like those who naysay TKD as a SD art. I believe the same applies. TKD vs. MT has been a long standing feud. And, to me.. much like this one.. its personal preference in training. Any of them can be lethal and effective if used correctly.
If I go out into the streets with the MMA mindset, sure I'm gonna get pwned. But I thought we were training in BJJ the art.. not BJJ the sport. If I had my pick.. I'd take Judo over BJJ for ground fighting. BJJ seems to be more fluid, where as TKD is "stiff" and I feel another "stiff" art would benefit me better in the long run.
Just my 2 cents.