Rocket league difficulty increase

I thought rocket league is just filled with Smurfs in the high diamond / low champ area because every other game you versing one player who’s incredibly mechanical dropping like 900-1000 points on you doing flip resets and double taps (usually the other player is definitely playing at their rank) anyways I thought they had to be all Smurfs but I’m starting to think it’s just diamond / c1 being much more mechanical ranks now. My question is does it get harder in mid to high champ (or is it more or less the same thing) and does it take way more to be able to get passed these ranks? Is flip resets gonna be a mechanic required to play in champ lobbies and double taps / speed flips become a basic mechanic you need to be able to perform when needed? Because back a few seasons ago I don’t remember these mechanics being something champs necessarily needed but considering every other game someone can pull it off I’m guessing it’s just the standard now?