I actually agree 100% with the below my pet hate is do 5min rounds from your knees, closely followed by let's start in a bad position but never go back to it in the whole round so you get to practise your escape once...
As far as I was always concerned, and my instructor, drill g during rolling time was perfectly legitimate. How the hell else do people expect to build enough muscle memory to pull things off quickly. People often describe BJJ as a chess match. There's no reason you can't play quality speed chess.
I always liked a class format that drilled a particular scenario many times with building resistance before going to free sparring. I definitely agree, that many would not be disciplined enough to try something new and revert to what they know works. wrestling, judo and submission wrestling that i did always worked that format.
