Oh, I'm not claiming that any RC is going to find Isa's statement inoffensive. I'm just saying that it's rather disingenuous to try to claim that he called the Holy Spirit 'demonic' (in any sense).
Some people say that, if charismatic gifts are truly a divine manifestation, then those who call the charismatic movement "demonic" are blaspheming.
By a similar argument, if Catholicism is the one true church, then anyone who says that it follows a false god could be said to be blaspheming.
Of course, it both cases, actual intention
to blaspheme is doubtful.