Mike....there are many factors that go in to answering this question. I can't speak for Northern MI, but I can speak for myself, at a public course in northern CA. Many of the same principles still apply.
A couple weeks ago, our course had been on the lean side of nightly irrigation. I definetely had "hot spots" out there, and my GM was concerned for total loss of grass in those places. I assured him that wouldn't happen. I do perscribe to the "firm and fast" mantra often spoke of on here. But the forecast showed us moving into 3 or 4 straight days of over 100F temps, so I cranked up the water a bit to (1) make sure the grass didn't go into the heat hungry for water and (2) to try to help my small maintenance crew keep up with the high heat. As a result, I did feel the course became slightly overwatered and softer, mushy spots as opposed to hot spots started to show up. Yet.......the hot spots went away, the course "greened up" as a whole as a result, and the compliments started flowing in in the pro shop. As you can see, I wasn't completely happy with the conditions from a playability standpoint, but we did LOOK good. And in the eyes of the public golfers that week, I guess that's what mattered.
Also, we have what I consider to be a smaller crew, definetely compared to most high end public/resort or private courses that are often talked about on here. My crew is 13 guys, including me and all summer long, to maintain the firm & fast that I desire, I have to have two guys on different schedules (7am-5pm as opposed to normal crew 4:30am-1pm) that are 100% dedicated to watering the course, mainly by hose and small moveable sprinklers. No other course I've worked at has done this.....and often times you do get the result of the maintenance crew popping on sprinklers all over the place in the early afternoon, right before they all go home, to ensure that the course survives the hottest part of the day in late afternoon.
There really is no GOOD reason for wet conditions......but there are reasons, which sometimes are legitimate and understandable once one understands the maintenance model, goals and demands at that particular course. I would like to think that it really does take a good superintendent and an understanding membership or public to consistantly maintain a firm and fast golf course.