To the original poster, there were a few machines of your vintage that were having trouble with clutch slippage in the 1,3,5 gears. Another problem with this first set of clutches is it also run by the reverse gear which alot of people find is really too high for most scenarios. If I ever put mine in Reverse I make sure to not putt around and drive it like a teenage boy. Honda's fix was to provide a new clutch cover that allowed for more oiling of the clutches. As stated it really wasn't a recall but rather a service bulletin but with a time frame for free replacement that ended in 2020. If that is something you are interested you can still get it upgraded but it is no longer free. I will try and post a link that talks about how to see if your machine has been upgraded or is still the old clutch cover. As far as running it, I know a few guys that kept running it until they got it fixed. Of course it will not get better, and it really depends on how long it will last. A clutch relearn might help but it definitely depends. I have a friend that is working on his machine right now, that has his slippage narrowed down to the shift solenoid. His main problem was that it was slipping in every gear vs just the 1,3,5 gear. He pulled the clutches and they looked great so he believes his solenoid is not working correctly.
As far as the other comments, I don't think using your machine for plowing is any more abuse that what many other people do to there's. I've seen videos of people stuck in the mud trying to dig out, under water up to roof and various other things. To me that is abuse, but each their own. I have used my 2018 for plowing for the last 6 years with a little over 10,000 miles and no signs of clutch problems. I started out with atv plows, then bought a 700 to plow and ride and finally have moved up to the 1000. I don't abuse mine but I can tell you the dang thing can really work. I usually have all 4 tires chained up, in low and with the diff lock the rig can really push some snow. It's even kind of enjoyable with the roof and doors and radio playing. I try not to abuse it, but it is what I have and am happy to put it to work.
Hope you can get the clutch fixed and get back to using your machine. Good luck.