A fair use policy, which you seem to be referring to [1], is pretty standard fare for many 'invididual user' products to exclude heavy-use groups.

However, they could at least define expected and minimum capacity. They might omit it because the business in this – aside from capturing users in their ecosystem – is arbitraging wholesale GPU price against consumer monthly needs, along with scaling the free tier.

[1] "Why aren't resources guaranteed in Colab Pro?" on https://colab.research.google.com/signup