Ah, those are all excellent points. My focus on multiplayer has purely been for co-op among friends or acquaintances, since that's how I tend to play RTS games. Anyway, I do view pvp, ranked matches, as something of a slippery slope with this game -- plus, that's what practically every other RTS game does, and they almost certainly can do it better than me, because of size and resources, their large existing playerbases and ability to do huge marketing campaigns, and the fact that some of their staff probably actually play those modes, and so know what the issues are (unlike me).
My focus here on multiplayer is just going to be to augment what is already here, unless for some reason something really changes (huge expansion in playerbase with a desire for pvp, with members of that playerbase being willing to guide me on what they want in a mode like that, for instance). But thanks for the warning -- it's a good issue to raise, and I don't think I've publicly talked about my feelings on this issue before. So good to have this out there, so people know what to expect on that front with future development.