The context of what the application does matters. I'm extremely cautious when people hype up "download sizes", when such size is less than 1MB, because this is usually a sign of cosmetic obsession and/or disassociation from the real world value offered.

A 200-300kb "bloated" single page app which does the job of a 10MB "minimalistic" downloaded store app – is IMHO pretty incredible. It's doing the same work at nearly 1/50th the size, all else being similar (externally loaded images and stuff). Heck, even a 1MB page load size is still 1/10th smaller.

Sure, it can be argued that the browser does most of the heavylifting. The same can be said of Android or iOS too, definitely the OS offers _even more_ heavylifting than the browser.