My personal opinion. No real data to back it up but....
I think the team (management and leadership) took the time during the break to evaluate the team, the roster, and the season. I think they came to the same conclusion as the fans have. The season is lost, there is almost no chance of the playoffs.
This is why I think Samuelsson had his surgery today. Everyone was probably hoping to wait until the offseason to do it but when the consensus was that the season is lost they went ahead and did it.
That sort of explains why it was so late in the break for the surgery to take place.
It will be interesting to see what, if anything else happens, if they've come to that conclusion, over the next few weeks leading up to the trade deadline, which is about 4.5 weeks away. Not that they have UFAs that are worth much at the deadline.
Again, just my own conclusions. No proof. YMMV
They may have also given him a week-ish to see how it responded to physical therapy before deciding on the surgical repair.
I will say, it's actually good to have the player shut it down and get it fixed instead of watching someone mail it in as a shadow of their healthy self, never doing what is necessary to be the player the team needs. Not naming Bogosian by name, but Bogosian.