YouTube auto reviewer Savageese owned a mazda 3, changed oil on a brand new car with mazda moly. Sent it in for analysis at 15k miles. Reply from the lab was that sample looked great - next time send it after 18k miles. And most importantly he tracked the 3-still oul looked great. you are not abusing the cx5, 10k is pretty safe on mazda moly. 7.5 k for regular synthetic. Keep in mind he sent the oil sample in for full analysis instead of guesswork. I change every 7k miles. Will switch to 10k soon as engine gets older.
Search for Savageese+vlog 21 to see the video on YouTube.
I do know of one poster on BITOG that goes with 10k oci on his Fords with direct injection and has excellent results based on the uoa. I think the driving habits and style play a big role here. These engines like to run so winding them up so to speak can help with fuel dilution and buildup of carbon. I do that with the CX5 by putting it in manual mode for shifting.