1. As parts have gotten better over time, service intervals have gotten longer (7,500 miles for oil changes, 105,000 for timing belt changes, etc.). You won't hurt anything changing your timing belt early.

2. When you do a valve adjustment, you need to rotate the crank/motor counter clockwise in order to get each cylinder to TDC. Turning the crank counter clockwise has the potential to loosen the crank nut/bolt. So, as an added precaution, Honda recommends retorquing everything when you're done.