Did iRacing change the window for calculating SR after a race ends?

Previously I was under the impression that until the last car finished the race, the session was still open and therefore SR would be calculated. So you could keep driving to try and improve the ratio to gain SR, or if you drove into the wall in frustration, those incident points would count against you. I noticed sometimes it would be a while before Crew Chief would say "Ok that's the end of the session" if there were cars really far back.

After the launch of Season 2 though, I've noticed that almost right after I cross the line, I hear an announcement that the session is over, even if there are still cars in the back finishing up.

I know Crew Chief is 3rd party and maybe it's making those announcements incorrectly, but was curious if anyone noticed this or read anything about a change in procedure?