I think y'all have collectively talked yourself into a blue funk.
The first line is intact.
The second and third lines aren't ideal right now, but this is temporary, Frost will be back by 11/2 (7 games missed), Hayes by 11/16 or so (2 months, 13 games missed, rather err on the side of caution). And Brassard and Laughton have first class wingers (Farabee, Lindblom, JVR, Atkinson).
The fourth line is, well, a typical fourth line. If we survived Lehtera, Leier, Weise, Bunnaman, Vorobyev, Andreoff, Twarynski we can survive this group for a few weeks.
When Frost returns, Brassard probably ends up replacing Wilson at 4LW.
When Hayes returns, Laughton replaces Thompson.
When Allison returns (Jan 1?), they have a deep squad.
And keep an eye on LHV, Foerster et al may make a jump when you're not looking.
Hart looked like he had his head on straight in preseason, if he's got his mojo back it's a playoff team.
Jones, well, he's an upgrade over Elliott in that he probably won't quickly fade halfway into the season. Otherwise your basic mediocre backup.
But Sandstrom and/or Ersson will get a shot if he falters.
My expectation is they'll be up and down until December, then once they integrate Frost and Hayes, and get Allison back, they'll turn on the after jets in the second half, much like spring 2020.