Don't have a problem if it's for lubrication, makes for a better blowjob but if for example, a WG spat in my face, I doubt i'd be too happy about that.
Something like that, I don't think it should be done unless you specify that you like it.
Same with some dirty talk, the right amount for me can add just that little bit extra lead to my pencil but too much and I end up like a baby giraffe.