I know some players don't like level wraps and other exploits in timed runs, and I'm not one of those players. (Unless we're talking about Shadow the Hedgehog. Chaos Control Glitch is too broken for my tastes.) But glitchless IL and single-segment runs would be interesting to watch in my opinion. It would give players who don't like breaking the game down to have some competition, and it wouldn't hurt to have some weird categories once in a while. As a Majora's Mask runner, Zelda certainly has those.
I, myself, love exploiting Sonic games, and video games in general. Level wraps have some interesting setups, especially the difficult ones. there are easy setups. (Oil Ocean 2, Metropolis 2) and some more difficult, but not too hard setups if your pausing method is consistent (Metropolis 3.)