Just one small comment -- instead of investors, it was mostly Masayoshi Son at SoftBank that was pumping capital into WeWork and each round invested pumped up the valuation as well, so never had to face any reality from other investors, but it all came to a head in the prospectus for the IPO.
I think Galloway explains it well in this video -- https://www.youtube.com/watch?v=3UdhLWGrtDI