I'm sorry, but as a long-time native player, i can certify that you're wrong.
You say scimitar outspammed by long bardiche ? It doesn't, not by far.
You whine about great lance, great lance is countered by any faction through throwing weapons, and is also outranged by awlpike shield. Take the right counter and you beat it. edit: also, great lance is quite ridiculously easy to chamber.
You say sarranids are underpowered, they are not. Starting nord infantry armour is 23, with a 28 cut weapon with 94 reach, sarranids get 34 starting body armour if you take the right build, with a free pike, and a 26 cut 97 reach weapon, or considering that the archers for the sarranid team have to spend such little money, with a team drop they get a free scimitar, vastly superior to the nordic basic sword. As well as the best cav, by far.
Crpg's balance, on the other hand, is rather more of a joke. It's fun, don't get me wrong, but balance wise it's Cav OP and Armour OP.