While their intentions are good, they’re missing the main point. You can offer all the money in the world, but if there are more girls than boys out there, it won’t matter. People say the age gap is to blame? Then focus on closing the age gap, not on getting shadchonim to concentrate on older girls.
Make a “freezer” for girls just like there is in Lakewood. Encourage girls to wait a few years before dating. Tell yeshiva guys that for the first 10 (or some other number) of girls they go out with, they must be within 1 year of their age. These address the cause of the problem.