I can see how he would feel it is a technical failure from his perspective as a core developer, especially having been frustrated at having valid solutions adop

I can see how he would feel it is a technical failure from his perspective as a core developer, especially having been frustrated at having valid solutions adopted, but it is unlikely that Bitcoin is going anywhere, it's too widely supported at this point. I think we will end up seeing those features adopted eventually out of necessity and perhaps this sort of blog post is an attempt to try and give the community a push, having run out of alternatives. I hope he comes back once the dust settles a bit.