But from the position of a guy that has few or none experience in dating, this might not be a bad choice.
Especially, as you mentioned, because it is very true that relationships are about expectations and managing those. And starting a relationship with someone who has basically always been in a relationship is very difficult for someone that was not.
Especially if the plan changed that you suddenly want to have a "serious" relationship. That is not very realistic and for the guy it doesn't really make a difference emotionally at this point.
The woman looking for greener pastures actually do have quite high expectations for economic safety, but that would make it more manageable for some guys at least.
And there is still opportunity for love here, and guys having problems with dating should know their options. Everything is allowed in love, right?
Disclaimer: I only ever at least partially defend the use of mail order brides on mondays. damn...