No, not at all.
Scat fetish: people who enjoy and/or get an arousal with handling, smearing, and doing other things with poop. Doesn't always involve an enema and most of the time doesn't.
Enema fetish: people who enjoy and/or get an arousal out of receiving/giving enemas. Has nothing to do with scat other than getting it out of their system and into the sewer.
I am not a scat fetishist. I don't handle it, touch it, or have anything to do with it other than flush it down the toilet. However, on the flip side of the coin, I enjoy watching guys expel their enemas, poop and all. This is all in relations to my childhood when an uncle who gave me many enemas had me expel them into an oval pan. This was not a kink that my uncle enjoyed; rather, it was a "convenience" surrounding medical issues - for both of us. It was the way it was. I guess my uncle saw tons of poop come out of my little hole over the course of three years. I don't think it was anything he enjoyed, just a job he had to do.
For me, the smell of a mix of Ivory soap, poop and warm water became ingrained in me (and sometimes causes me to become arouse). It immediately brings back memories of childhood. No, I don't like to smell poop anymore than I like to touch it. Nonetheless, when it came to enemas it was there. What else was to be expected when giving a young boy enemas to clean him out?
Today, I enjoy giving guys enemas and watching them expel into a special tub that I call an "expulsion tub". I also expel my own enemas into it for convenience sake as I can't climb in and out of a tub very easily (nor get up and down from the bathroom floor). If there's a lot of poop come out, so be it. Doesn't bother me. Also, I work in nursing homes and am exposed to poop and pee on a daily basis, both sight and smell. After awhile you get used to it.
But again I don't handle it, touch it, etc., and ALWAYS wear disposable vinyl gloves when giving enemas to others. Once it's all out, I simply dispose of it in the toilet and then, if necessary (and it usually is), i give the guy another enema, and perhaps more if he really needs good cleaning. By no means do I consider myself a "scat fetishist", but I do enjoy giving/receiving enemas, and on the kinky side, enjoy watching them expel.