I don't really see the problem with that. It is not a requirement for a business to constantly grow or seek the maximum amount of customers. If I make some profit without growing, I'm satisfied, especially if my existing customers are satisfied.

(And there are many ways to control growth beyond just "refusing access")

What would you get from controlling growth? Existing customers more happy? Anything else? Just curious.

Less work, better customer relations, etc.

I personally believe that a small business is just better at making customers happy than a big business (atleast for a lot of things on the internet)

Less work is great.

Less work, possibly?

I read it as not taking on more customers.