This is 100% WRONG.
The MSF Basic Rider Course, as offered in NY state, includes NY State's Points and Insurance Reduction Program. BY LAW you get the point reduction AND the insurance reduction (each year for three years) on your bike AND your automobiles (we cover windshield wipers, seatbelts, schoolbuses and a bunch of other stuff in the BRC, and these are definitely NOT part of motorcycles. The "defensive driving" course is built into the NYS BRC as offered through MANYS and MSF approved sites in NYS).
Some companies attempt to skirt the program. One major company, who shall remain nameless, used to try the "we already included the discount in your quote" game. Its bullshit.
Talk to the agent. Ask for the discount on the bikes AND the cars. If they won't budge, let them know you will contact NY state Dept of Insurance and file a complaint. We've managed to get the aforementioned company to start honoring the discount...
http://www.ins.state.ny.us/
The discount is part of the PIRP program, and its state law. You can find information on the NYS DMV website as well as the NYS Dept of Insurance Consumer Guide to Buying Auto Insurance
http://www.ins.state.ny.us/auto/2007/auto07.pdf
Check page 19: The company MUST apply the discount to the liability, collision and no fault portions of the coverage. It's not 'negotiable'. It's not an occasional discount. It's not subject to discretion. If they sell auto/bike insurance in NYS, and you complete the course, you get the discount every year for three years. Period.