It's insane that a mere ToS violation (not even anything criminal or large scale) on a different Google product got not only his account banned, but all related

It's insane that a mere ToS violation (not even anything criminal or large scale) on a different Google product got not only his account banned, but all related accounts across all Google products banned also. It makes me really worry about things I have done that are truly against their ToS. For example after Google Cloud Platform announced a $300 credit promo for new users, I made another gmail account just to try them out. I don't think what I did is unethical or even against the spirit of their promo so I didn't bother to hide the connection back to my real gmail. Will google use this to ban my real google account one day? Probably not, but before this story I naively believed the answer was definitely no.