Hell no. Sorry for the reaction, but market optimization under current market principles, will result in the narrowest interpretation of the goal.

As a worse case example, you could succeed by matching people least likely to abort, but most likely to have multiple partners.

I think it's unlikely for your worst case scenario to be realized. Underspecified objectives can cause unexpected results, but it can also lead to desired results. Fortunately experimentation is relatively cheap and tuning optimization metrics is the norm for most apps.