Paul Dix - Why Node and Scala will dry up: Go will drink their milkshake
vimeo.com
vimeo.com
Also, his opinion on Options seems to forget its advantage that the compiler won't let you use a "nullable" object without proper care. It is the main thing about it.
From the talk, it seems that he was new to Scala, didn't properly understand its concepts, wrote a bunch of spaguetti code and then blamed the language.