@corbet I think they are simply putting together two (admittedly disjoint) ideas: Torvalds might be succeeded by a team + LF has paid for projects before => LF should pay for a team for documentation editors. (And now, not necessarily when Linus retires.)
The fact that the man pages project is somewhat confusingly referred to as "Linux documentation" is a separate issue... one that I don't blame them for.
@corbet Heise is renowned for good tech journalism due to c't which has long history. iX OTOH (where this piece appeared) is a side gig of them where they produce sloppily written articles aimed at "IT decision makers" with practically no journalistic value...
@jmm sorry, as someone that worked for heise online and c't (but not for iX) for 20+ years I have to say that's a way too simple description.
All three publications have slightly different approaches and target different consumers, which is why they work somewhat differently. But in the end you find a lot of good and bad stuff in all of them.
In the end I'd say it's 90+ percent the author that makes the difference (and the editor up to some point), not the publication.
(CC: @corbet)