The point I make on which you base (1) in your reply, was predicated on the assumption that we are in a bubble of historically noteworthy proportions. If a market itself is inherently overvalued, then your (correct) points about early warning signs in a company’s financials do not necessarily apply. To the degree that they do apply, the conclusion that Tesla was overvalued would have been reached long ago and therefore no-one of that school of thought would have been holding for the last couple of years.
As for your later point about JP Morgan. Americans have the right to sue the vendor over their being clumsy with a cup of hot coffee that doesn’t contain enough moron-proof warnings. Frankly I’m surprised we’re only talking about this happening in late 2021.