The worst part is that it doesn't seem like it would be much work to just throw ships onto a map; Cryptic just never considered doing it, I guess. There is really is not any reason to why they shouldn't implement the damn things.
Also, red alerts are as simple as it gets; I have no idea why Cryptic didn't throw it in. It's just a map with enemies! They really don't have to work hard with this one; if Cryptic never implements something like this, that will only show how silly/lazy they can be, which is ridiculous.