Do you know that that isn't her intention? I genuinely have no idea, but that wasn't the point of the tweet. You could likewise say "telling developers they 'can't just do stuff' doesn't address the needs of working people, because the developers will just laugh in your face. It needs to be an actual plan."
If it turns out her plan is housing that is unaffordable, then I'd agree with your point but to say 'X has a lot of plans' as some kind of criticism when that in itself is a good thing, and not discussing the actual merits of it is just lazy.