@ftxcommando Sup Com 2 was exactly trying this no? Easier economy and more big robots. It didn't work out so well.
Marketing doesn't have the aspiration of being "realistic" so people dont get disappointed. The goal of Marketing ist to get people interested and try it out. Watching the sup com trailer (the best RTS Trailer of all times imo) again it does a decent job showing that the game is about base building and (very) large battles with some cool units and even nukes. If you ask me it already attracts the people who are less into Starcraft 2 and more into big scale Macro heavy RTS games.
I think considering that there are not many new RTS games around this game just needs a bit more visibility, easier accessibility for new players and a "modern" reward system and it would do well gaining more players.