I don't think most folks that use weapons that offer fast follow up shots are any less concerned with proper placement of the first shot. Any ethical hunter puts a high priority on that. With that said, there are times a fast follow up shot can make the difference. There have been times that I have used a finishing shot on big game even though the first shot put them down and would have killed them. There have been a couple of times I have made a good first shot and it didn't put them down immediately, so I hit them again. There have even been a few times that I have taken multiple big game animals in rapid succession.
The availability of a fast follow up shot should never be thought of as a back-up in case you miss the first time and I don't think that's a common mind set regardless of what a person hunts with.
The availability of a fast follow up shot should never be thought of as a back-up in case you miss the first time and I don't think that's a common mind set regardless of what a person hunts with.