The answer is yes. Let's look at the example in England. When an appeal tribunal was set up for summary trials, the number of these trials went down considerably. In fact, often, the decisions under appeal were deemed to be invalid.
A good military leader does not simply use disciplinary measures to impose discipline. It can be done through leadership and other means. Do they need this tool to impose discipline immediately, especially when this leads to detention, for example? Is this necessary? I believe a number of other countries have said no.
In France and Belgium, for example, there are no military tribunals in times of peace. Is the French army therefore less disciplined than it used to be? I do not believe so. I believe military leaders use summary trials because it is a very effective tool for the chain of command. There can be absolutely no appeals and no questioning of the decision. They impose their will, whether it is fair or not, and that is that.
However, there are other ways of doing things. We have come to this point where you, as legislators, have to look at this to find a better way, one that is fairer and more respectful of human rights.