Personally i think is a great decision. Right now(after closing access) they have a controlled number of account active. This will allow them to weed out the bots to the point of extinction since they wont be able to create new account.
The sample size is big enough that hopefully they can fix the lag, and implement at least some kind of measure in the event of a spike in players.
Also hope they work on the current system in the game like how even after towers are dead wars keep going with no point, or that many wb dont even move and just stutter around like some broken AI.
In that same note im hoping for some skill and class balancing.
All the above assumptions are my hopes for change that could turn many of the naysayers into thumbs up players. Either way i think it was a great move by IMC to limit/close the game to new players for now.