If you read the post you will see that I said these words "I would like to know that if it did happen I could buy and install new pistons myself." I don't know where the idea would have come from that I intended to tear the engine down when it had nothing wrong with it. What I wanted to know was whether I could fix it if it happened.
Another open question that I have never seen answered is what year bike got the new part number pistons. General thinking is that the 2014 didn't have any problems with this. Some 2013's did.
Thanks for the information about the block. From the posts where riders on here had the issue it seems like the cylinders usually do okay even with the ring lands cracking. The pistons are also softer aluminum, so they might not scratch the harder coating on the walls. I'm behind the times I guess, because it surprises me that you wouldn't have to sleeve a soft aluminum block. I know that Porsche has been doing it for a while and they had problems with their older coatings.
The pistons should not be wearing the cylinder wall at all. Softer pistons
should not be a requirement; but a piston that is more resistant to breaking may be. Only the rings should be touching the cylinder, and I assure you they are harder than any piston. The piston sleeve, if it has one, should not be touching the cylinder wall due to the layer of oil provided to protect them; unless run low on oil, improper oil, or overheating occurs, etc.
I probably shouldn't mention this, since the K engines probably don't have this problem, but BMW cars have been known for "butter blocks", which can strip out head bolt holes during driving, and sometimes cylinders becoming egg shaped. Butter blocks may be rare, but do exist and from what I've been told, can not usually be repaired. The aluminum is just too soft to hold a thread insert and cylinders can not be repaired. Also, some engines were porous and had oil leaks that could not be repaired; often mistaken for valve cover leaks, etc. Let's hope the K engines don't ever have this problem, but who knows.