I
Ice24
Lurker
IMO, I believe the first line is pacing themselves.
I read it more along the lines that without a vet on the line (Brown or Iafallo) Byfield now slides into more of a leadership position and has taken big steps forward towards taking charge. Likewise, both Kupari and Vilardi held more of a leadership role in the AHL which was good for them, and has carried forward to their return to the NHL lineup. None of the three need to defer to a vet which has made the line for collaborative.
I don't think it's a comment on the vet per say, but more so towards players the organization potentially envisions in future leadership roles with the Kings now having a chance to build those skills.