Yes it may be driving great now and second later it may break and it will cost you more than the vehicles worth. Replacing Timing belt at the manufacturer recommended interval is like buying insurance.My 2015 mdx sh advanced tech has 126k and timing belt, water pump has not been changed out, they traded in before they did the 100k service on it. It still drives likeba beauti. My mechanic drove it and drives like bran new. So ill get all that done in the next 10k or so. 2015 engine is more reliable than normal. Look at consumers reports as the pilot 2014 (same engine) is the most reliable suv.