I think the exclusivity helps it, but I do think it would sell better today.
I touched on it a couple pages ago in more detail so people are welcome to go back but to resummarise, the 36 released in a time period where giant watches were on trend, e.g. Panerais and POs. The Railmaster XXL, which is enormous to the point of absurdity, I think 49 mm, seems to have been quite a bit more popular than the 36. Classic sized watches have come back into popularity in modern times and particular simple dialled field watches seem quite trendy. I have no doubt the Railmaster of the 2000's would have sold much better today, and probably better than the funky dialled third generation series discontinued last year. Would it have been enough to not be discontinued? Dunno.