CrossClimate2 is likely a waste if you have dedicated winter tires...
I would continue to get the MXM4s. They have the Tesla foam to reduce the tire noise and the W rated tires have a 45k mile warranty.
"If the tire treadwear does not reach its mileage warranty a pro rata replacement of the tire may be available under this warranty. For the mileage warranty associated with a specific tire, please see your Michelin tire retailer or visit
www.michelinman.com/promise. In order to maintain the treadwear warranty on your tires, the tires must be rotated every 6,000 to 8,000 miles (10,000 -12,000 km), or as recommended by the vehicle manufacturer, whichever rotation period is less. Failure to rotate the tires as provided herein voids the treadwear warranty."
Basically it's going to be a pain to claim the warranty on the tires. Rotate them four times a year (based on your driving of 67k over 3 years) and even then expect to pay a portion to get new tires. They're probably suggesting the CrossClimate2 thinking the "aggressive tread" represents MORE tread and will last longer. They might last a little longer, but I wouldn't expect twice as long as the MXM4s or anything, maybe 5,000 miles more.
You could also go for the Pilot Sport All Season 4 which should last a little longer than the MXM4s based on the UTQG treadwear rating...
Rotate those tires more often, run the correct PSI (XL tires require at least 42 psi for that load rating) and maybe lay off how aggressive you accelerate.