Guess which game is more interesting? Yeah, SupCom.
Competitive does not equal quality or popular.
Interesting is subjective. Popular, however, is not. Starcraft is FAR more popular than SupCom (and is much older). Also, on the contrary, competitive does equal popularity, at least in terms of online play. There are a lot of strategy games that are very popular amongst the single player crowd. But only competitive strategy games have any kind of significant following or longevity in online multiplayer gameplay. Furthermore, only very competitive games are played at events like the World Cyber Games. If a game isn't competitive enough to be at the World Cyber Games, then it will have a much harder time maintaining a serious following.
As for the "fun and interesting" versus "competitive" debate, I've had this discussion before with people.
The developers have stated, quite clearly and quite often, that their intention with this game is for it to be a competitive game. The term "tournament staple" was even used a couple times, if I recall.
My point is simply that with the current scaling, this game will not be nearly at the level of competition for it to be considered anywhere near on par with a game like Starcraft. Maybe you think it's more interesting with tiny units on a massive scale, watching the battle unfold from afar. But that hurts the player's ability to distinguish themselves through skill, particularly micro skill. Since this game doesn't have you managing resources or controlling a lot of units at once (even as a General) macro skill will not come into the picture to a very large extent. Therefore, in order for it to be adequately competitive, micro has to play a very significant role.
Strategy obviously needs to come into play as well, but strategy can be easily learned over time by almost anybody. That creates an increasingly even playing field in the long run. Micro has to be practiced in order to be developed and maintained, and some people are simply better at it than others. This allows the best, most dedicated players to distinguish themselves, meaning the playing field will become increasingly less even between average players and great players. This is what is necessary for the game to be competitive.
I'm not asking for Warcraft 3 level proportions. Units are huge in that game because there tend to be very few in use at one time. However, I think making the units more on a size level of Starcraft would be good. Minotaurs = Zealots and scale from there. Demigods ought to be at least as large proportionally as a Battlecruiser or a small building. This keeps their "epic" quality.