Yeah, it would seem that issues with cesarian births that are 'sterility-related' (i.e. skin/oral/gut microbiome composition) should be relatively easy to fix with artificial application of the relevant mucus/fluids/culture from the mother.

But as is the case with much of biology and medicine it may also turn out to be much more complicated than simply applying some vaginal mucus, placenta, or what-have-you.