Ok Stilt, I'll admit some might REALLY stretch out what a character is actually capable of. But those who really know, would know it's BS.
I mean just by showings alone, we have maybe a handful of actual army busters and they are all in that top 1% within the SW Mythos. Which is majority coming from the EU.
Disney Canon, I've only seen Vader take on any large group that was in the low to medium double digits for infantry. Which was an entire Rebel Company which had vehicle support. In Vader Down.
A Company isn't an Army, it's only a step above Platoon level in strength. I couldn't count all the troops in Vader down, but he really only killed maybe a low 200+ count of troops. Even then though, I'm pretty sure it wasn't all at once, but reading through the comic it makes it seem a little bit confusing honestly where it doesn't seem he fights them all at once and it's more a separation/divide/conquer sort of thing. But whatever, we'll just go with it.
Of course given the location here is much smaller compared to where Vader was, that might be an issue. Still I can give the benefit of the doubt in saying he'll get into the 200 count before falling.
Which being fair, I don't see why that's a bad thing?