Matter of time till what? They stop giving a damn about the Knockout division? Im willing to bet on never.
The division outside of TBP, Mickie, and Tara is a whole 'nother issue. They have great workers, but don't use them. Daffney is never on TV, they gave up on Tayloe Wilde & Sarita, they completely wasted Hamada, and so on.
The TNA Knockout is superior to WWE's, but it not without problems.
So is their tag division. Other than MCMG, Beer Money Inc, and Gen Me, they don't have any other amazing tag teams..
Every company has its weak points.