Erlang is a stable language that has been around for a long time (almost 35 years now). It's used for way more mission-critical code than golang is ever likely to be used for. It's weird syntax and performance tradeoffs are very well known, but you still won't see anywhere near the number of complaints that you see against golang.
Erlang is less and less used in telecoms and it's the only place if was really used, lot of things have switch to C/C++/Java.
As for the reason why it has less complains it's pretty simple no one uses Erlang and it's a niche, it's not a generic purpose language. I can't even tell a single known application or library written in Erlang.
IBM Cloudant runs everything CouchDB which is written in Erlang as does Amazon for SimpleDB. WhatsApp and a bunch of Pinterest are written in Erlang (they may actually be in Elixir, but on BEAM).
To my knowledge Ericsson still writes most things in Erlang. Yahoo uses it for a couple large services. My company use PagerDuty which is also written on BEAM.
I'm sure there are many, many other things in not familiar with, but claims of Erlang's demise are greatly exaggerated.
