By definition a 'competition' gun has no auto-safety. Many have no safety at all.
As far as seeing the auto safety 'changed much', no. Typically field guns are used in the field where the auto safety very much belongs.
Some guys do find a nice field gun they more often use on targets and have the auto feature disabled.
Disabling the auto feature is not all that common and far from universal. It's not a one way street to do this.
I own a gun that had the auto safety re-enabled by the previous owner.
There's no right or wrong, it's a personal thing and I don't much care either way.
You should be able to safely and correctly use any type of gun or safety system.
