Yeah, no. It's true that Bleach was basically aimless in the beginning, but the start of Naruto is very similar to MHA (well, the other way around, really, but you get what I mean) : short arc to establish the main characters + another arc to show the dangers of the world + tournament with expanded main cast, it just takes more chapters(which I guess maybe wouldn't be appreciated nowadays, but...if these series came out nowadays, maybe they'll be paced differently. This is kind of a meaningless point. It's like saying that Casablanca wouldn't work out today because it's in black and white and now everything is in color.). And Naruto arguably got earlier into plot-heavy stuff and hardcore conflicts, because the Chunnin exams with filled with conspiracies and all that. By comparison, The Sports Festival was exclusively a tournament.
And One Piece had already introduced two crewmates by Volume 1, as well as established the premise and the end goal and the general way the series would work (visit new island, meet new member, fight some villain). All of the major East Blue arcs are there to establish the main cast, they're not just random adventures. And by Baratie we are already getting big world-building with Mihawk's introduction. Then again, maybe One Piece doesn't really belong in this comparison because Oda did have a very clear idea of what to do with his series (as opposed to Kubo and Kishimoto). It really says a lot about One Piece that there's very few things you can look back and say 'that didn't matter'. No, after 900+ chapters, almost everything that's happened is relevant one way or the other.