The reason he mentions Phoenix and Elixir is because it differentiates from every other language and framework due to its concurrency and memory models. Those models make hard things easy that you simply cannot do in other web frameworks.

That is why he mentions it. It’s not “another web framework”, it’s changing the expectations for what you should be able to do without all of the crazy plumbing that was mentioned earlier.

He replied with that because it’s quite literally the answer to the problems pointed out. Not “another web framework, k thanks”.