it's because they don't have a lot of ninjas, not any good pos1 anyway. So simplest solution without telling them to save and buy a good pos1 is to suggest a main pos1.

That, and the fact that there are lowbies I helped who literally outright said they don't plan to save for anyone yet, and just give them a team with what they have. So like, many people don't want advice on who to work toward, they just want a team that work with the ones they have. And who are we to tell people how to play? :v