So the flamberge has a 5 foot long blade? o.O
And..the long awlpike is 6 feet? How the hell would you stab with that, miss, pull it back, and stab again within a second?
Feet is a weird and silly measurement system that made me have to go look those lengths up! Rawr, me mad!
But really. a 185cm long (actually longer since the extra length behind the lowest hand) stick isn't that hard to stab with. Just take a normal mop or something and try to do some stabs with it. It's really not difficult and personally I can (without armour and no metal on the stick) stab much faster than what they do ingame. Doing quick stabs isn't that hard.
Also, the flamberge, and a lot of the other weapons ingame, is actually a bit short to what they really were. A zweihander/flamberge could be up to 180cm long. Spears in special is much shorter ingame than what they were historically. Most (medieval, military, infantry) spears were 1.8-2.5m, longer than that would be considered pikes. The long spear got the long spears of the side covered (it's 2.45m), but the normal warspears are
very short. The warspear, for example, is only 1.5m long ingame. Way too short. But the biggest difference between ingame and reality is the glaive I think (not that I would have a longer glaive ingame! Longer spears, hell yeah! Longer glaive? Fuuuu-!). Ingame the glaive is 1.6m ingame, while the real versions were usually a blade, around 45 cm long, on the end of a pole usually 2m long. In total 2.45m. Same as the long spear!
One of the few that are longer ingame than what they really were is the Katana, which is 95cm ingame, but which actually are only 60-75cm long. Some "long" katanas are found in the 75-90cm range, but they weren't the standard length. Actually the classification for a Nodachi is that it is longer than 90cm. Really silly that the ingame katana is then 95cm and thus technically a Nodachi xD