I think that Stranded should tell “big shadchan” that she is not interested in being one of her “clientele” if these are her rules. She shouldn’t feel a necessity to use this particular shadchan. The boy seems like a nice guy who would make a great husband and she should go for it, no matter what the velt thinks of it. When they are happily married the velt will forget and life will go on. And for those who don’t forget, she shouldn’t worry about them, they are not the type of people she is interested in impressing anyway.
This girl has a chiyuv to do proper hishtadlus to find her bashert. The husband that the girl is looking for doesn’t have to be “Chosheveh Bochur” and if it is meant to be, then another shadchan will suggest it, or perhaps this “chosheveh Bochur” will pass by the next time she gets a flat tire…