Technically, one can pull down any mature framework, decouple all of the features into smaller segments, get rid of all the code responsible for backward compa

Technically, one can pull down any mature framework, decouple all of the features into smaller segments, get rid of all the code responsible for backward compatibility, and re-brand it as 'lighter' alternative. How is this any different? You can't claim that X is better or faster than Y just because X is smaller or has fewer features. There are a lot of other factors in play here.