I think that is one variant of his point and you have completely missed it. Who in the "community" should own the "trademark"? Did someone register it? Do "they" represent the community?
I can find no evidence of anyone registering "Scala" as a trademark for a programming language. www.scala-lang.org never indicates there is a trademark or uses any usual trademark symbol.
I expect I'll be receiving an apology for your condescending assault on my intelligence?