With amazon doing this I am sure now all those people will be frantically signing up for Google. I am sure it will eventually happen that Google enforces the limit. And I would bet sooner rather then latter.
For my personal use case it isn't a huge deal since I just use it as a back-up for work stuff, music and pictures. It is nice to know that if I am at Taco Bell and my apartment burns down I am not totally screwed.
And even if the limit is enforced I will get my mom and my sister and my sisters kids accounts and call it a Christmas present. They are always running low on storage.
The good thing about Google is they've been fairly nice about grandfathering people in. Since gsuite is a business product I suspect they'll be a little more forgiving. Although it wont surprise me if they start more aggressively hunting down people using the service for plex.
It's 10 a month for unlimited. But to answer your question yes. I have three accounts on my business plan and it's been unlimited from the start when I was just a single user.