Still, he doesn't have the best "tether recovery," Link/Tink/Lucas/Samus, they can air dodge then tether. Giving them some invincibility time and time to remove theirselves from a bit of pressure. Some of the characters I just mentioned can then stall with their tether while maintaining their invincibility. Plus, if they chose to, they could up B or chose from a few different mix up options to get back on stage. Olimar, really doesn't have a bunch of mix up options off stage, or to get back on the stage and his up b isn't even fast. To add on further, he can't air dodge into his tether, making his tether weaker than it already is in comparison. His tether only goes in one direction as well. In additional to that, it doesn't go that far, the reach of most of the other tethers is much better, the angels of other tethers is superior and it is dependent on how many pikmin you have, which is never a constant. The height he gets from doing up b probably isn't any higher than a air dodge, if anything it's equal to or less than.
Even compared to characters that only have a tether for an recovery, he isn't better. The only characters like that, that come to my mind are ivy and zss. Both of their recoveries have much more range than olimar's inconstant up b. The only thing he has over them, is a not so scary hit box that comes out even when latching. I mean, it can stage spike, but all you need to do is avoid the up b by atk from above, behind, below etc. If ZSS catches you off stage with that up b, you die. If ivy combos into that up b, like she will, you die. The only thing he has over them, is latching while throwing a hit box out. I would hardly call that superior, in away way possible. His recovery is interesting and neat, it just isn't good enough.
I also want his up b to some sort of kill move when using flowered pikmin.