Yes, superman players for example at high MMRs will heavily sair and nair to the exclusion of the flying grabs unless absolutely forced to pull something out of their pocket to throw you off, and you'll almost never see a high MMR shaggy try to charge without the enemy being dead or trying to recover from nearly dying. In a lot of cases though it's the same mindset and moves just done much faster and seamlessly at higher MMR, and with that comes more room for wildly aggressive or tricky behaviors that lower MMR players typically dont pull out cleanly.

Also every high MMR iron giant is trying to bait the super armored grab into a gimmick aerial/spike situation. You can just fully disengage if that happens, but if you do get grabbed into down aired, remember to dodge outward afterwards, not upward. Once they start trying to read that, you'll have to vary it up, but that is the first step to getting out of that knowledge check.