The fact that Google would suspend their account instead of just blocking their access to YouTube is an abuse of their near-monopoly. I'll be taking steps to migrate off the Google stack for this.
Especially if your work depends on it, I would encourage everyone to do the same. No other company (including your bank) should be able to shut down your business and/or ruin you financially because they close your account temporarily.
At the same time, this also means you're less affected by discontinued products or price hikes.
The attack surface is larger than a TOS violation (someone could spear-phish your login credentials, or a coordinated attack on your account could lead to denial-of-service if Google can't disambiguate your legitimate attempts to login from attackers' attempts).
It's not an ideal state of affairs. But the alternative would probably need to be more rigorous identity verification and locking down of systems.
I question whether separate accounts would help, Google's automated systems probably connect them and bans all of them anyway.