I’m curious why this company raised money, only to park it in a bank account? What was the raise for?

Pretty much the best case for a startup is you don't need money -> VCs are begging to invest -> you take the money just in case -> you never need the money. Especially if it's a top tier VC the PR from raising is worth the dilution.

My take on that was that they did use a lot of the money but were also generating revenue that came in to replace it.