They don't base products off them but it is useful as quick prototyping / hacking together some minimalistic MVPs. Outside of hackaton they would have to actually pay developers to do this sort of prototyping / hacking work but they can get it for free in hackatons.

It's obviously not a major thing but it still irks me, especially when hackatons are over the weekend when you would normally charge double of normal rate for overtime if it was a part of normal work and you agreed to do it for some reason (meeting deadline etc).