The situation is actually a little more nuanced than that. @guinux, the maintainer of pamac has been alerted about the issue, but the problem is that even though he is still the official maintainer, he’s not as tightly connected with Manjaro anymore as he used to be — possibly because of professional or other obligations.
As for why there was no official information about the problem, that’s another story, and again, not as black and white as you put it.
1. Problem exposure
Even though there has already for a while been an occasional instability in pamac — and I’ll be the first to admit that it contains many more bugs than Arch’s venerated pacman or the very decent octopi — the problem we are seeing now, with the pamac GUI crashing in the middle of an update, with or without that the pamac daemon continues updating the system in the background without any visual feedback, is still fairly new.
I’m no developer, but I suspect that it could be related to the recent changes to polkit, given that there weren’t any other incisive changes in that regard. As such, not everyone on the team was perceiving the problem as particularly indicative of a serious flaw just yet.
In addition to that, not everyone on the team actually uses pamac — least of all the pamac GUI — for updating their systems.
2. Misguided pride, perhaps?
pamac is one of Manjaro’s own creations, and therefore, a halo product. As such, I can imagine that it would be a bit difficult for the developer team to admit that Manjaro’s halo product is seriously flawed, and especially so given the nowadays less integrated role of pamac’s maintainer within the team.
3. A heads-up has effectively been issued
The “Known Problems and Solutions” section of the 2026.02.23 Stable Update thread does now contain a warning about the problem, with the advice to either update one’s system from the command line with pacman, or to use octopi for those wanting a reliable graphical package manager front-end — octopi directly uses pacman at the back-end, in combination with an AUR helper (such as yay) if so desired.
I have added this warning myself, after it became clear that there was something seriously amiss with pamac, and that — at least, from my own perspective — the crashes have become (more) prominent since the 2026.02.23 Stable Update.
This is not true. pacman handles dependency problems just fine. The problem you are referring to is caused by the proprietary Nvidia drivers and their dependencies, not by pacman, and if people were to actually use their brain, then they’d know how to handle that.
If you cannot remove a package or update a package because of dependencies — and again, Nvidia is the only area where this problem occurs — then you must remove the dependencies first. It’s not rocket science.