Like I said, all the reasons for removing jQuery are valid, but only in the context of the codebase where they are given.

You wouldn't want to remove jQuery from an app that is used by IE9.

People end up hearing the reasons and don't stop to think, hey does this actually apply to my code? What are the trade offs for that 30k of code?

Many just end up rewriting what jQuery did in a non reusable way that contributes to code bloat and bad readability.