Probably just means the decision to use Scala was taken back when it looked like it could really be the next big thing. These days it's clear that Scala has lost all momentum. Scala 3 was an attempt to fix that by appealing to Pythonistas, but I doubt it'll work. It may stick around as the Spark language, but it's hard to believe in a bright future for it.

If an employer uses Scalaz or Cats, on the other hand, run for the hills.