Case in point, a number of years ago I built a static web page for delivering software distribution for an SME. This is hosted in S3 on cloudfront. It is one HTML page, one image and one CSS file. There is a bit of plain DOM javascript which pulls the software versions out of metadata files on the CDN and updates a SPAN in the page. Someone came along and couldn't work it out so rewrote the whole fucking thing with AngularJS. It looks the same. There was no benefit to doing this. It was just that's how we do things. The first page hit is 220k. I don't even know how they managed to do that.