It sounds like CPO warranty option is being sold.I got it from SMITH CAIRNS Mazda in Yonkers, NY. 8 years/100 miles (this goes from lease origination date) with 0 deductible was slightly bellow $2k after taxes.
Probably somebody in that dealership bent some rules to be able to sell it. Mazda may not like it if finds later that some procedures are not followed - like 165 points inspection etc.
Other 49 dealers were probably not willing to sell the warranty without the inspection, which could cost them more than the mention $200 profit if they follow all the procedures. In the typical post-lease sale these expenses goes in other markups and do not affect the profit margin from the warranty contract.