Not GP, but what bothers me is that this attitude does not take into account what most cpp programmers actually end up doing: Unless there's somebody at the top of the organization that can set the "right" rules at the start of the project, a novice won't know to use the "right" feature. And neither will somebody who comes from other cpp projects that only had the old way of doing things. The result: a codebase with every possible way of doing a thing, which is strictly worse than one where only one way is used, even if it's not the prettiest. Now if you want to work on it you need to know about everything. Every new feature just increases the need for overhead knowledge. It's almost unavoidable.
So, complaining about this would be an unwise shortsighted take in other languages maybe, that don't have the proven track record of just leaving 10 different ways of doing the same thing on the standard. In cpp it's just the voice of somebody who has been burned one too many times by that kind of feature optimism.