This allows you to try out some open models and better assess if you could buy a dgx box or Mac Studio with a lot of unified memory and build out what you want to do locally without actually investing in very expensive hardware.
Certain applications require good privacy control and on-prem and local are something certain financial/medical/law developers want. This allows you to build something and test it on non-private data and then drop in real local hardware later in the process.
I feel like they're competing against Hugging Face or even Colaboratory then if this is the case.
And for cases that require strict privacy control, I don't think I'd run it on emergent models or if I really have to, I would prefer doing so on an existing cloud setup already that has the necessary trust / compliance barriers addressed. (does Ollama Turbo even have their Trust center up?)
I can see its potential once it gets rolling, since there's a lot of ollama installations out there.