I've definitely smashed ice a time or two to get to some fish. Actually one time Ed and Nate were along in a little headwater stream in the mid-western part of Ohio. We cleared about a 100 foot or so stretch of stream and then found the Southern Redbellies we were after. We actually through most of the ice on shore by hand, that was a little cold but we achived our goal.
Somebody else was there, too, but I can't remember who. Anyway, I think the dace were in a small pool, confined at either end by riffles. They had nowhere to go, once they were spooked by the breaking of the ice. Am I recalling correctly? Does this make sense?
Tom and I broke ice in a "ditch" recently, hoping to find pickerel, and came up with nothing but a few baby shiners and a few baby green sunfish, still in the vegetation where the ice had been. That ditch was wider, and there were lots of places for spooked fish to go. We just decided to come back in the spring.
Just the same, I think Brian's point is that there is good collecting to be done in the winter, and he's right.