I do think it is important for the public to have a means of seeking redress about the behaviour of public office holders. I don't know why it wouldn't be. The public has the greatest interest in what our representatives do and what our public service does. I can't think of a good reason why the public ought not to be able to. I do understand that people will talk about vexatious complaints and trivial and frivolous complaints. I think you can create a mechanism to deal with those.
I don't want to take all of your time, but I act as an integrity commissioner for three municipalities in Ontario. I have had a number of complaints that I thought were trivial, or they weren't on point, or they weren't within jurisdiction. I just dismissed them. It's really not that hard to do that.