That's a good addition.I'd add to that "unusually small vocabulary for expressing objection".
Country A holding the idiot ball for decades on end while Country B consistently does everything right isn't ASB, it's just shit writing (if the author doesn't provide a satisfactory explanation of the structural nuances that caused County A's leadership to be so consistently poor).
And your point about bad writing is also very pertinent. Alternate history is fiction after all. History is different. It often does provide a satisfactory explanation of the event but unlike a TL author, has no obligation or pressure to make it obvious or simple. And with history the onus is on the reader to discover, rather than the author to present.