That's exactly what I was pointing out before. :-)
No doubt he's fast: he's in the hundreds or thousands of mach level by a number of feats now. It's just that ALL of his other feats are like nothing at all compared to the nuke feat, and the fact that the other speedsters do the same thing, no problem except eventual fatigue, makes it even more of an outlier. I mean, they spent months training Barry and Wally to make them fast enough to cross a relatively short distance at some trivial multiplier of the speed of sound to save Iris from Savitar. And Barry, with all of that, wasn't capable of reaching that level: only Wally could. I'm acceptably fine with the idea that "Barry spent months in the speed force and therefore got way speedier" argument. But how exactly does that apply to all of the other speedsters who did nothing of the sort?
Hey, it's likely perhaps that Barry's speed gets confirmed at that level eventually. But for now, he's simply not got the feats to just grant that. It's "Neutron Star Tank" level as far as outliers go, perhaps even larger.