It is odd.

There wasn't a lock out on the Darklight Gear in 2.0, which was the progression equivalent to the iLvl80 Gear from CT now.

It's just a way for them to extend the content until they get ready to release 2.2.

By the time they release information on the next patch, people will forget about the lockouts and have something to look forward to in 2.2. Barring it being bunch of re-ran crap like HM dungeons and Super Ultra Extreme Primals.