Yes, that's how responsibility works. Doesn't mean that cops will be sentenced and go to jail for every person they tased, just means they won't be immune by default.
How would that differ, functionally, from what we have now? Clearly a prosecutor can already bring charges when a cop steps over the line. Assuming that "line" wouldn't change, how does that differ from qualified immunity? I'm honestly asking here, because I'm not a huge fan of QI but I don't see a good alternative.