I would normally concede but your team wasnt exactly the best. We got giants before you and managed to lock your portal 3 times (you locked ours zero times) so we had a good enough chance at winning so that I wouldnt concede. Tbh the A.I wasnt much worst then JewishLumberJack so the game would have resulted in the same way.
Just some tips - lock our portals! You guys could have easily won about 10-20 mins early if you did that.
And its true the A.I often throws itself out you - it is hard not to kill them.