It's clear from this post and his post on Khan Acadamy, that Bret Victor is uneasy about the immediacy of the recent "Coding Activism" movement and is probably motivated to write these types of posts because some coders taking part in this movement often cite him as their inspiration. I'm sure he feels compelled to emphasize that the intention put forth in the sum of the work of people like Papert and Douglas Engelbart was not to ultimately fuel the creation of a "cooler IDE".