DVR6K, this isn't about sticking to their freeze guns. Just ask the guys who had their freezes waived this year to get SH commands. They could easily choose to waive Engagement freezes, and recruit all newbies onto the 320, which would please all those SH P2 who are waiting patiently LH and massively boost morale in the same blow. It wouldn't please the training dept though, who then potentially have to do two courses instead of one.
Make no mistake, this is not about choosing to get the best pilot or the most experienced, or the most anything into BA Longhaul, nor is it a way of sticking to the freeze promise. This is a cost game, nothing more, nothing less.