Could it be that the specific seed companies that "[m]ost roles required to work a traditional in-office work week" were involved with business idea that had a better chance in succeeding, because of market conditions and product demand?

That is, maybe the seed companies that did better with in-office had tangible products, versus no-office seed companies did not - and at this time the market wants tangible products?

edit: i.e., are the all software development firms? Are they all widget making companies? All service companies?

(why is it so hard today to express what I mean?)