Did you even read that article? or did you just post it and think to yourself "Yup, this makes me sound smart".
**Smart money is on the latter, because having read the article myself, it's obvious you didn't.**
Fecal transplant bypasses your throat, mouth, and stomach via a tube, to avoid infection of those areas. Finding a donor is particularly difficult and involved because they have to find someone with a healthy gut that will have compatible feces. Women are usually not acceptable donors because of their tendency to have bacterial imbalances. The donor is thoroughly tested for bacterial balance and infectious diseases. The recipient is prepped with enema, laxatives, and antibiotic therapy, and typically receive follow up care 4-8 weeks after the procedure.
All of this, and it's only to treat C. Diff, which you can easily get by ingesting fecal matter.
TLDR
So what big papasan is saying is, as long as you're a current eligible fecal matter donor, it's ok to have your ass eaten, otherwise, definitely not safe.
*spoiler alert, you're probably not an eligible donor*