Tripping happens in real life, so I am fine with it being in games. It makes it more realistic.
I play videogames because they're
not realistic. Even games touted as realistic aren't realistic. Silencers don't quiet gunshots to whispers, guards don't forget a massive security breach by an unknown assailant occurred just because they couldn't find him after 30 seconds, Steve Nash doesn't dunk etc. If I wanted realism, I could join the Army or
not be Steve Nash on my own time.
Tripping is annoying even if it didn't normally affect entire matches. I don't know about you, but I hate tripping in real-life. I don't want that shizzle in videogames. And nobody played the original or Melee and said, "Golly, I wish my character would trip for absolutely no reason whatsoever."