Councillor Whitehead is correct to say that freezing the urban boundary will inflate land values — just like the new DTSP and the related pre-zoning did to lands in the core back in 2018! Funny enough, I can't remember him speaking up about his concerns back then...
Ultimately though, land value is just one out of dozens of factors being balanced when engaged in high level planning, like building a municipal growth plan — and though I suspect I'm more sympathetic than others to the argument that land value doesn't get enough attention during high-level planning exercises, land values are most definitely not the sole factor impacting cost of housing, but Whitehead seems to imply they are, at least from the quote in the article.
As to the actual plan, I haven't had the chance to have a look through it so far, so take this with a grain of salt, but if Robichaud and Planning's opinion is that we can meet the targets just through tinkering with gentle density, then I'm REALLY concerned about how realistic the City's plan actually is.
The cited examples are good and all, and I'm happy to see them allowed, but they really don't come close to meeting our housing needs. The "adequate zoned capacity" argument against development/density/etc. is really such a fallacious concept considering how it never plays out in practice, but it seems like that's what the City's target is, which really seems to me like planning for failure.