Why is everyone anxious about a PLD Rework?

[Absurdity]

Nothing about Balance theorycrafters working out the best way to leverage Overheat turned it into the shallow shtick MCH has been since Shadowbringers. Nothing about their figuring out the best ways to open as Monk removed Greased Lightning. By their count, after all, it was already balanced; whatever "clunk" was there didn't matter to them, because they'd already accepted and worked around it.

Pretty much this, the parsing community never really cared about or advocated for job changes to make it easier for them to parse, they just took whatever was there and optimized the hell out of it.

Which is both good and bad, they don't really care if a job is complex or braindead, if it has flavour or not, they'll take whatever the devs give them and run with it.