I'm sure not to be the first one putting this idea forward, but here we go..
The Garmin Swim 2 regularly counts too many laps, either by a not-standard turn or other arm movements, or who knows what other reason. This makes me always still count my laps myself, which defies a bit the use for the watch. Couldn't we have a setting that dismisses laps under a certain time/ amount of strokes? During my last swim for example, it added 50meter in 2 strokes and 0.25s/100m pace.