These facts support my point: the issue filed as linked above correctly cites one of those statements of support, without resorting to outrage, and has been successful at getting Chromium team's attention to the matter.
https://bugs.chromium.org/p/chromium/issues/detail?id=145180...
(Note that I wasn't able to identify any viewpoints or opinions in your reply, other than the facts discussed above. If that's an oversight, I'm happy to revisit.)
They claim lack of interest when they (and Firefox) have been hiding JPEGXL support behind flags (and nightlies in the case of FireFox) yet WebP and AVIF is fully supported despite their similarly niche status.
Chrome’s support for JPEGXL was also already more or less complete when they decided to drop it.
Ironically though it has brought a lot of publicity to JPEGXL as “the format Google is trying to kill” in a Streisand effect sort of way. But with Chrome’s dominance that’s not enough to give it a fighting chance until Apple quietly announced support for it.