Re: True but you could say the same about new wave
I mean, new wave is just a much more broader (and I'd say richer) genre, which could accommodate a lot of bands that sound nothing like one another. That made it a space where one-off weirdos could comfortably coexist with album-oriented artists, many of whom showed a lot of diversity within their own catalogues (e.g. Blondie). And probably the influence of punk's focus on brevity and the development of things like MTV around that time are part of the reason why even album-oriented acts put some effort into releasing great singles.
Whereas the power pop aesthetic is a much narrower one and not geared towards innovation - so most bands sounded similar and few had much intra-catalogue diversity (and those that did were mostly bands that arguably belonged in other genres, like the dBs (new wave) or Game Theory (college rock)). So most of the albums end up samey and forgettable.