Tire Tread/belt problems of the 2017 Acura MDX

Continental cross contact lx sport 245 / 50 r 20 102 h tires. We had them installed at the Acura dealership on 7/14/2023. We noticed recently the tire tread on the front driver side in an area was peeling up in a small spot. At our oil change and tire rotation with Acura on 4/24/26, I notified them and they stated tire was okay. The tires currently only have about 15;389 miles on them. I contacted continental tire because I noticed the tread peeling or pitting on both tires that were rotated to the rear getting worse. Continental told me I could take to a tire center that sells continental tires to have them inspected. Took to discount tire and they submitted information to continental tire. They responded with a prorated amount of $230. 00 total for the 2 rear tires only. The rep with discount tires informed me that all 4 of my tires came from the same manufacturing plant and same lot. I am concerned that my front tires will start to peel or pit like the other 2 tires. We have maintained regular tire rotations and maintenance on our vehicle. We also do not drive on gravel or dirt roads or aggressively and the vehicle is kept in our garage. I am now looking at having to replace all the tires because I am concerned about driving with the tires in their current condition. This is concerning to me because tires should last longer than 15, 389 miles.