1) You actually get an alignment done every 7-8 thousand miles?!?! That is a red flag right there- can you post the alignment sheets showing alignment specs before and after?
2) Your Tire Pressure Monitoring System (TPMS) does not prevent uneven tire wear. You should know your tire pressure and what the TPMS is used for.
3) Nitrogen in tires? Oh man...
4) Not sure how you are getting your information, but I just looked at the NHTSA website and here are the complaints about tires:
2016 4 door Honda Accord: 3 complaints are about tires out of 288 total complaints. None of the tire complaints are about inner tire wear, or wear of any kind. Just the usual gang of illiterates saying they had a flat tire and had to wait for a tow truck. Who cares?
www.nhtsa.gov
2017 4 door Honda Accord: 2 complaints about tires out of 159 total complaints. More illiterates complaining about hitting potholes and having to get new tires. Again, how do people this stupid find gainful employment to get a job that will pay for an Accord?
www.nhtsa.gov
2018 4 door Honda Accord: 2 complaints about tires out of 290 total complaints. (This is the 10th Gen Accord, not the 9th). I can't fully understand the illiterate ramblings of the two posters complaining about tires, but it is NOT about tire wear. One complains about the TPMS, the other about the radar (but lists this as a tire problem).
www.nhtsa.gov
EDIT:
@DARKART beat me to it...