When I play Smash Bros against friends, I have fun even if I lose. When I am beaten by a wavedasher in the tournament, I don’t have fun. There is no satisfaction in being beaten by someone constantly exploting glitchs. Wavedashing most certainly is a glitch. Go into Vs. mode and select a computer opponent with the difficulty set all the way up. You will see no wavedashing; only dodges. This was not the first LAN where many complaints were heard. There were plenty at the last few.
If we were to bar all glitch exploitation and the same people won, it would still be better as less people would be angry.