The trick is the "half million population limit" he promised, which will make densification something he does to the Liberal cities on behalf of his exurban voter-base. And this is a specific, quantifiable promise he has mentioned repeatedly with hard numbers.

I don't discount the possibility he could half-ass it and let it die in consultation the way the Liberals did with electoral reform... but on the other hand, when have Conservatives ever given a shit about consultation?

Edit: either way, I'm not saying "conservatives are good". I hate them for a variety of reasons, not the least of which is they represent an active threat to trans friends and family.

All I'm saying is "using the threat of municipal funding cuts to force cities to fix their planning departments and rapidly greenlight large infill developments is a good idea and the Liberals+NDP should steal it".