Because in an ideal world they’d get a baby and that means money, it’s incredibly risky and in my opinion stupid as they’ve not had a baby to date, they’ve also become a staple of Edinburgh zoo and they’d have to change their branding and the panda area, which only opened the other year.
Given the fact the male doesn't even have his plums anymore, and they are relying on IVF from various sources, they technically don't even need him