It wasn't a good business to be in anyway. I don't think any of these freebie devops businesses are all that smart. They're not a "business", they're a feature of someone else's business. And as soon as they catch up then you're done.
Also they’re surprisingly expensive: things like spam and cryptocurrency mean that you need a fairly large abuse prevention team which is expensive but has no customer-visible benefits. GitHub has that too but as you said they at least have the rest of the business with which to recoup that cost.