Is that a good think ore bad think.
Depends on your opinion. This sort of TL I've found extremely hard to do a real, proper, good critique of. I wanted to do a more sympathetic and evenhanded critique of the same author's WW3 TLs on Fuldapocalypse (to make up for my past inappropriate snarling), but all I could really come up with was "it's just basically Hackett fanfic. Not the best, but definitely not the worst." Exposition-only TLs have the problem in that the easiest critiques are either small technical nitpicks or fundamental opposition to the premise, neither of which is the most fun or helpful.
I definitely do not want to say "this is bad, don't do this". I do not want to discourage anyone from doing their creative efforts as they see fit.
But... I just still don't really think Hackett-style pure exposition works that well for softer settings like this. Yes, a conventional Fuldapocalypse is in many ways an implausible soft setting itself, but it's one where tons of documentation, plans, and simulations exist. The difference between that and a more inherently contrived 1990s-style thriller with a different opponent and a range of "threat balancers[1]" is big, IMO. It's like having the Germans go ahead with Sea Lion in ideal-for-them conditions (ideally good weather, ideally good supply flow management, ideally little British opposition in the first wave), compared to having them build Hitler-mechs, megawings, and space stations before invading Canada.
One has an actual "foundation", and the other doesn't. And if you're just recounting events, all the plausibility issues of the latter will be more prevalent than if you're starting in Ottawa in a normal book as the Weltraumjagers jump in. That TL is considerably less extreme than that wunderwaffe example and I can see why people would like it, but it still just doesn't really fit right to me personally.
[1]If you just downscale the scope, write it as a conventional narrative, and are willing to kill off characters, you don't
need "threat balancers" for what was considered the best non-Soviet Warsaw Pact army. It's still plenty a threat to the individual personnel.