I'm not familiar with this, so googled it, and the third hit was skohan giving dire prophecies about it two years ago: https://news.ycombinator.com/item?id=21011917
But to be fair, the comment you linked is not a prophecy it was a lamentation
I would imagine a few years after SwiftUI becomes the primary UI stack used by iOS developers, many of them will be cursing Combine's name, as it will be clear most of the problems making iOS developers' lives difficult will be coming from FRP.