I dont think TL is actually too much trouble so its unlikely hes 35:65 but we dont have any 30:70, so few characters would even have 1 MU like that, none of them are unwinnable, but some harder then others.
As for Pika, yea hes actually not the most difficult, mainly his projectiles, imo, are what makes this hard, TJ is so annoying, I can handle QA mainly cause its not the most dangerous thing, but TJis really annoying, and sometimes you have to mix-up how you deal with them, so you dont get predictable.
Sometimes cancel em with your ariels, shield, jump and even sometimes just take it head on.
Now obviously his main KO moves onstage are Usmash and Fsmash, and he may have a slightly harder time edge guarding us then most others.
So avoid those KO moves and expect them at all costs because if your at rediculously high %s, especially as Kirby soon they will go for Throw KOs even if they are bad at that.