Do you see the problem then? Roll spamming is way too powerful.
No, it just means you're using the game's mechanics to your advantage. Those kinds of cancels aren't any different from wavedashing.
Difference between Airdodge canceling BS and wavedashing is.
A. It creates interesting ground oriented situations and combat
B. Can promote offensive and defensive play, where aid offs canceling just promotes defense.
C. Allows all characters to maneuver around the stage and platforms very well.
D. Everyone can effectively utilize it, where air dodge canceling can only be utilized by a select few.
E. Doesn't reward you with an attack in addition to invincibility frames.
I can recall when people pondered if the roll would be the new wavedash. Well, it is, and it's as bad as everyone thought it would be. Atleast you can punish a bad wavedash. Characters like Rosalina can Roll without being punished. The other day I literally spent 5 minutes with Sheik trying to take away a Pac-Mans stock because he could just run away all day and unless I get a hard read there is nothing I can do about it, and before you try and blame lag, this was a local game between 2 people.
Sakurai needs to fix this invincibility bull**** with rolling and Airdodge spamming, as it makes no sense to deliberately hinder two mechanics (edge grabbing and re grabbing) without seeing the potential flaws in allowing characters to have a massive amount of repeated invincibility frames. It's a huge design over site, either that or a deliberate one.
Changes to this game need to be made if it doesn't want to end up being the flavor of the month.