The original claims are as hypothetical at this point - that's what I'm saying. Do poor working conditions sometimes exist? Yes. But so do disgruntled employees. Do hired protesters exist? Yes. I've had 2 employers get protested and on both occasions I've walked up to the protesters and asked them for more details on their quarrel than "SHAME ON <ENTITY NAME>" and they haven't been able to give me any. Yes, there's no evidence given that they're hired protesters, but it's not like these writings have much more substance behind them either. None of it's worth much consideration as-is.
I agree that the original claims can't be taken as absolute truth either without further proof.
The claim of paid protest only happens to be more suspect because of Trump's recent pattern of writing off dissent as inauthentic when in aggregate it's clearly grassroots and sincere. The link between Musk and Trump reinforces this, but it may be only a coincidence. It's context worth noting but it's not absolute proof that Musk is lying.