People on the previous thread hypothesized that maybe the administration was trying to secure funding for CDC without "triggering" ultraconservatives in Congress. I doubt it: again, the President's budget is not taken especially seriously in the first place. I think it's not unlikely that this is simply the administration trolling for a conflict in the news that they think will make them look good with their base.
Either way, it is of minimal practical impact. Which is important to know, because many people on Twitter are (justifiably) alarmed that the administration is instead governing what words CDC uses in scientific literature.
Sounds like a quibble over form, it's not like they're removing the science itself.