The correct explanation would be "it takes us more man-hours to implement it than we're willing to dedicate to a game that is 3 years old."
Of course, with all the PR filtering, you'd never hear a game developer say this in a million years.
Not saying that it never happens. I mean, just last stream Kyle finally gave me a definite, cut to the quick answer on custom hotkeys with "Yeah, it's not gonna happen, Jaedrik." But it took them how long to say this for how long we've been asking and getting "it might be something we're looking into maybe and it sounds interesting maybe but we're not sure how to implement it."
So they give BS explanation to give the fanbois ammunition to feel better.
URGH, JUST LET US LOAD OUR OWN .SGAs AND SET UP PRIVATE SERVERS.