Any saw is going to waste the clutch side bearing at some point with full-time professional use. I cut full-time for several years for three large logging companies here and my modded saws lasted just as long as my stock saws, or my co-worker's stock and modded saws. The maintenance the machines get pays a much larger role in how long the machines last. What's more likely in a professional setting here are the clutches and mufflers blowing out, ignitions failing, and big end rod bearings failing due to debris ingestion. What gets the landing saws the most are the PTO side bearings failing or the bearing pocket wallowing out due to the saw being forced to run with a dull chain day in and day out. There are a lot of ham-handed operators on landings here and the maintenance those machines get is minimal.
It's the right move for Husqvarna to put beefier bearings and cranks in the 572 - Solo did it years ago in the 670/680/690/603 series and those saws lasted a long time in the woods.
It's a regional thing - Oregon Department of Forestry and Washington Department of Natural Resources are pretty gung-ho about modified equipment of any kind on their lands (saws, yarders, loaders, feller-bunchers, etc). A few years ago, Agee logging started a fire near Elkton, Oregon due to a log loader that had no muffler and an exhaust that dumped out straight to the ground and they got a big fine.
There's not much cutting on Federal lands here anymore but back in the day, the Forest Service and Bureau of Land Management were also very gung-ho about chopped up mufflers. The difference on the east coast mainly has to due to with the different conditions guys run in there and the logging operations tend to be a lot smaller, in addition to the fact that there's many more road systems there.