It's not a secret that they've been working on all-new core books!
Okay?
Repeating it doesn't make it any more true, though. That's just wordplay, not reality.
The reality is: The right pace is good. Too fast is bad. Too slow is bad. Stopping is bad.
That's it. There's nothing more.
It is literally a syllogism. It's not illogical. You may disagree with the premises, but the logical form is valid.
"X-state is good."
"Making Y-change to the current state improves it."
"Therefore, applying Y-change as much as you can makes the best result."
Now, you can certainly say that it is
unsound, because that means you think that at least one of the premises is
wrong. But it isn't a fallacy. It is, quite literally, "A; A implies B; therefore, B." In this case, the retort would be that you reject P2; you don't believe that slowing things down is always an improvement from the current state. Rejecting one of the premises is nothing, at all, like claiming that the argument is fallacious.
Edit: Further, you literally just admitted that it is slowing down--
why is irrelevant, it IS slowing down--and there are folks claiming exactly what I said, that slower is better, period, end of discussion. Hence, it is a reasonable conclusion to say "it's slowing down and people act like it should slow down further. That's a bad sign."