I think most designers and expert players are focused more on multiplayer types of gameplays but if you consider the percentage of players (multi/single) online on a gaming platform (like steam) how many plays the multi and how many plays the single player on RTS games? I guess there are more players playing against AI. Most of the time I play online against AI with friends the game goes through to finish with minimal problem or no gameplay problem at all while if I play with friends who are good players the game have so many issues like lag or crashing etc. Sometimes you finish the game but you make enemies due to loss or disappointment. Now you want to play multi but there's no room that matches your liking what will you do? If you're intermediate player and the available rooms are for pros, noob, friends and known only what will you do? There are so many instances where what your option at those situations is to play AI.
I based this experience by playing RoN coz I like the game than any others like AoE, Civilization, Stronghold, Empire Earth and other medieval RTS games. We have different likes but I hope you guys make this beautiful game playing against AI more interesting and challenging. Every time I logged on to play RoN I can see around average of 500 players online but how many rooms are playing multi? Not even close to 50 people. Sometimes it reach around 1000 and sometimes peak at 3 to 4 thousands how many plays multi? Maybe not even close to a hundred! I started playing this game last Saturday and I logged ridiculous hours already playing against AI. Prior to this I was averaging 5 hours on weekdays and close to 8 hours on weekend days playing just an "assasin" game against AI on RoN. I played so many hours on AoE 2, Civ5, Stronghold 2, Empire Earth and LoTR but since I started playing 0AD it seems like I going to spend countless hours on this and much more than any other game.
I had so many wishes for the game to have but I guess I will be enjoying this game more with just a bigger map and road generating merchants or any possibility that roads can be established between civic centers. "Moats" are good bonus too!