I think it's worth illustrating the concept. A device that's heavily reliant on a cloud service (in this case Google's) means you have to worry about the risk of being locked out of that account especially if getting access after that lockout is difficult.

These devices are very different to traditional computing devices (e.g. Windows/Linux PCs) which mostly store content locally as there lockout from a single cloud is unlikely to be catastropic.

As the major consumer OS makers (Apple/Google/Microsoft) go more in the direction of an integrated experience where cloud storage is key, how they handle possible ToS violation and account lockout/closure will become increasingly important.