I often hear the line that competition is unrealistic because one guy taking on ten badguys is just ridiculous and you're forced to use bad tactics.
I agree completely.
Try looking at the stages this way:
You're not shooting ten different badguys.
You're shooting one or two badguys from different positions.
Those three targets arrayed shoulder to shoulder in front of you... that's not three different badguys it's one badguy who's made two steps to the side.
Two targets in front of a wall and three behind the wall... that not five different badguys, it's one bad guy who keeps moving to different positions while you're shooting at him.
There's no real need to "slice the pie" when you're chasing the one badguy around the corner at speed.
It's just a small mental switch you can do in how you approach USPSA to free you from thinking the tactics you're using are "bad".