Hardly, it only worked in this case because of how high profile it was. You cannot use the "submit to arxiv, wait for 100 labs to verify" model for anything less exciting than room temperature superconductors.
And honestly, if they’d waited until their work was up to the quality bar for a journal submission, a lot of resources would not have been wasted attempting to replicate it.
And people absolutely proved that their ability to read scientific claims in isolation and make an educated guess how much weight to give them is really bad.