I think the proof is in the pudding. Vimeo has been the #2 video sharing platform for a long time and are basically exiting the creator market because it's costing them money.

The other thing to consider is the that Google gets immense economy of scale from its other cloud business. So a one-product company like Vimeo will always struggle to compete in an economy-of-scale dominant vertical like storage.

Microsoft or AWS could compete here if they chose.