I like the aggression change. I think it's more unrealistic for everyone to sit back and wait for their opponent. Just because Silva is godly with it doesn't mean counter is the strategy. It's taught more to be aggressive and hit first, not the other way around.
But as for the ground game, it needs an overhaul. Too many skills needed which will never change so they need to gear it to be more effective. The days of Chuck and Rampage is over. The only real sprawl and brawl fighter in the top of the pack is Dan Henderson.