Seems sort of par for the course for Marvel/DC to me? They’re large corporations. It’s foregone that they’re looking for the appearance of authenticity rather than authenticity.
I suspect most people in the immediate editorial structure new about it, and higher ups wouldn’t care about it much. In the grand scheme of things it just seems like a very minor issue. And quite a long time ago.
That freelancers lost out on work of course sucks, but former editors get hired for books all the time, and any of the same sticky issues still exist. It happens, and it’s part of being in…well, almost every kind of environment.