Water Pump problems of the 2008 Honda Accord

At 90,000 car shook and was misfiring. Codes pulled were p301 and 304. Spark plugs 1-4 were replaced free of charge due to Honda service bulletin 13-078 which extended the warranty to 8 years on engine misfires. My complaint is that the pistons and the piston rings were not inspected at that time. Why not? who knows what condition they were in? the car was returned to us with spark plugs as band-aids! it happened again at 103,000 miles (which we paid for) and now at 128,000 the dealership says we need a complete lower engine rebuild to replace pistons 1-3. Of course as a 2008, even though low miles, it's outside of warranty. I thought in buying an Accord, I could drive it for at least 150,000- at least! I would like the warranty further extended, or at least for american Honda corp to pay for half of the repairs as it's only 3,000 miles outside of the original service bulletin extended warranty of 125,000. If Honda acknowledged something was wrong with this particular v6 vtec engine, why does the warranty expire? shouldn't there be a grace period or a compromise? we are getting punished for caring for our car and having low miles on it. Many folks benefitted from the extended warranty because their cars failed within the 8 year time frame because they had high miles- higher than ours! what about those 08 Accords that are still failing outside of the 8 year mark that have lower miles than the ones Honda covered under warranty??? c'mon american Honda, take care of all your customers! I have purchased 6 Hondas in my lifetime and am a loyal customer at my local Honda service center with an extensive service history. On this car alone I've purchased new brakes, new starter, new alternator, drive train belts, water pump, new vtec spool valves, vtec solenoid, and every service as recommended by- at the dealership- and my Accord only lasted 128,000? how?.