Been busy but im back to make some controversial statements.
I haven't had much time to play ultimate, but I can say that in the time I have played the game, I've found it to feel boring as all official iterations of the game have felt since melee.
That aside, I've been meaning to write up a long paragraph of examples of good game design vs bad game design but I really haven't had time.
For now though I have a quick - perfect example - of bad game design:
It is absolutely terrible game design when you make it so that players can't see where the hell their characters are on screen, or what is going on. Colour schemes, lighting, and camera movement are very important to having an enjoyable gameplay experience and it's one of the most basic game design rules. This is especially important to get right in a game as chaotic as smash bros. Smash ultimate (and pretty much all smahs games since melee) have unfortunateky thrown that out the window and replaced it with over complicated backgrounds. Sure it's nice to see cool levels, but not at the cost of good gameplay. I just played the game last night with 4 people, and nobody could see wtf was going on. This is a case closed bad game design situation.
I hope someone hacks the game to fix this problem (and other problems I haven't mentioned here) asap.