I’m uncomfortable with that loophole only because of you’ll recall, several years back a black lady knocked on a stranger’s for because her car broke down in front of that house and got ventilated without discussion.
I don’t know the specific case you’re talking about, but that isn’t actually the law, that is a failure of our justice system, the shooter could have gotten convicted for that (based off your description I should add, if I’m missing details that would exhonerate the homeowner, like an outside gate already having been breached, then that’s another matter). In my area, you are required to have signs of forced entry before you can defend yourself in this manner, and if someone shot through the door my DA would certainly try the case, but then the jury can decide if “guilty or not guilty,” and that’s how you end up with both false convictions and “false releases” like the one you mentioned. Unfortunately however I’m unaware of a more fair system than the one we have, but I’m open to ideas.