Actually, from a technical point of view, professional development teams make scalable systems, they do not limit the number os customers... it is no sense
So you mean that, if our player population increases 7 times (it would be really amazing) thus the server would not handle that new players? -1 for it
Queues, account limit, bandwidth limit, feature limit and so on are workarounds that should be temporary and emergencial, but not permanent.