A crossbow is a weapon that has a stock, a trigger, is not hand held and drawn. Thats not archery is it?
That could be how YOU define it. I could throw an arbitrary definition like "a crossbow has a machined riser, sights and shoots non-wood arrows" but you and I both know that isn't the REAL definition of what a bow is nor what historically archery is.
A crossbow most certainly IS hand held, and IS hand drawn. It has a trigger, but then by and large most compound shooters use triggers too. A stock is what the limbs attach to. A machined aluminum riser is what the limbs are attached to. Held differently ........ but the bow still functions the same, doesn't it ? Still got limbs and a string and the energy that proiduces propelling an arrow. Single shot, short range weapons.