Doesn't really answer the asked question. It is telling that, to my knowledge, the GoC (including the minister) has not weighed in, nor have the necessary policy steps been started to get TB approval.
A lot of the press coverage says something akin to "the CRCN wants..." Our system is (thankfully) not set up to respond to what one L1 "wants." It responds to what the people of Canada, through their elected officials, decide the nation needs. Hence the requirement to prove to TB that the requirement matches the policy (disfunctional as the process currently is, the intention is correct).
One of the sayings I've picked up somewhere along the way: "if you tell the military you have a large pot of gold for them to spend, everything suddenly becomes gold plated."
Time will tell whether this vision has staying power. I actually hope it does, because even though I may not agree with the RCN's priorities (as I understand them), I think this is an important step towards a well rounded mid-tier Navy.
15 River Class, all in the same config, I'm not as sure about anymore.