Its one of those things that happens when buying a commercial production model. Every gun is different (even in the same model) and in order to keep the costs down they tend to leave little things like free floating barrels and bedding up to the individual and his tolerences.
Even a commercial made gun that comes pillar bedded and free floated although more accurate is still probably not shooting to its full potential
It is just my opinion, but I think the guns come off the line too fast that nobody has the time to properly troubleshoot every rifle with a dial indicator.
No commercial manufacturer is going to make sure that the action is bottomed perfectly against the supporting surfaces of the stock and make sure it does not bind along the side of the action channel.
No company is going to make sure that the epoxy did not shrink.
The most they will do is probably is make sure the action screws are tightened.
If a person wants these he can either pay a gunsmith to do it or get a custom built.
Personally I agree with freefloating and glass bedding rifles I just wouldn't trust them that it would be done right.