There's only a couple chapters of I'm From Japan every I think 2 months? Translating it doesn't require much effort, and having them drop something because it's not popular enough wouldn't be a good sign. Series already get cancelled in Japan from low popularity, we don't need an addition type of cancellation happening with official translations too.
Fan scans (especially the big groups that often go for wsj stuff) sometimes drop series if not enough people are reading it, or delay the releases, or put on hiatus unless they find a new translator, and for me personally part of the appeal of a service like manga+ is having consistent translations where I don't need to worry about the series being dropped or delayed or put on hiatus.
Gag series in particular rarely get much english translations by fans and even if they do they're very rarely complete, often just being either the first few chapters, last few, or some random ones in the middle the scan group liked. Even if it's not popular personally I'm glad we can finally have proper, full series translations of this whole genre that we've never really gotten to see much before.