Mercedes2012

I have a 2020 CLS 53 with about 20,000km on it, my front tire had blown out and the other front is just as bad. I had it on a lift and notice a lot of wear on the inside of the front wheels. It was towed to the dealership for new fronts and a wheel alignment, at which point I was told this will happen about every 20,000km on this car. Is this car really that bad on tires. I have owned a CLS in the past and never had this issue