Why don't you play around with it for a while instead of guessing? The stock should be easy and cheap enough to replace if you don't like it.
If anything, I like the stock because you just don't have to care about it. I had a gorgeous rifle with a walnut stock to die for, and I was so afraid I would lose that luster. My brother had a modded top-flight Mercedes and not only he but everyone around him was terrified what would happen if so much as a scratch came across it that none of us wanted to get anywhere near it. A scratch would break his heart, and who wants to break his heart? So he would ask someone to like move his car or something and all of us would refuse, with alacrity! When we were in the garage waiting for him, we were polarized to the magnetism of his car, stretched out against the wall while the car sat brooding and sulking, ready to snap, in the center.
To me it's a relief to have something cheap I can bang around. But it's a miracle that it could also be a quality product I can rely on and fiddle with if I have to. The stock is the least possible reason to not like the Avenger, IMO. Hell, fill it with foam or duct tape it, whatever, who cares. You'll get another if you need to, probably cheap, maybe better.