My opinion won't be popular, but it wouldn't be the first time.
It's a food, so in moderation there shouldn't be an issue. MCTs may be great, but that is no reason to overuse it. It is still a saturated fat (animal or not). There are still a lot of questions surrounding its use. There are many vets and veterinary nutritionists that don't recommend it.
Ellie gets it daily...but only because it's an ingredient in her kibble. Her veterinary nutritionist did not tell me to add this to her diet when feeding homecooked, even knowing that Ellie is a pancreatitis patient, and she would know much more about it than most people online.
If it is being given orally, particularly to dogs with health issues, only a vet or veterinary nutritionist should make that decision. It's still an oil and the people/sites recommending it online are not veterinary nutritionists. There is still a potential for damage and a licensed professional should be consulted before using it.
Even adding a little bit to food for healthy pups isn't something everybody should just start to do. Kibble and canned food have fat in them already. Adding another fat source, animal or plant, is still increasing fat content. When doing that, it is "always" best to talk to your pup's vet about whether or not this is advisable.
Putting it on cuts and such, hey, if that's what a pup's vet tells an owner to do, it shouldn't be a problem. As long as it has been approved by a pup's vet for that particular dog. Just because one vet might say it online doesn't make it right... I have talked to my pup's vet about what to use on those types of things because IMO that is a call that a vet should make. They are trained in controlling infections, not me.
We use Neosporin here.
All that to say - ask your vet, especially if there is an underlying health condition because it very likely is NOT okay in a lot of cases.