Taiki is good at sneaky but he also will just do whatever people tell him to and so will go and be a distraction

So yes I like this plan. Other note that one of Taiki's powers is binding creatures (like the shirei) and though it won't work (or at least I am assuming he won't) but he will probably try (especially if they get into trouble)

He will be cool with superheroes though he has not yet met one