Point taken, but we’re driving two different cases though.
Going back, it was a party situation (as what lunettesrouges mentioned) and buff limits are slightly less for non-Cleric characters. And like I said, if the Krivis [in the scenario] even bothered to learn the skill (at all), then it would take literally less than half-a-second to cast, then he/she can forget about it for 3~5 minutes (depending on whether he/she learned the attribute).
Thing is, no one should be excluded from party play just because they don’t have X or Y or Z. That wasn’t the point. 
It was more to weigh in where thing are leaning towards, in my experience at Lv300+ party-based gameplay, there are very few instances wherein I would not benefit from a Daino, even at Lv1/2/3 on my non-Cleric characters.
I am also working under the assumption that people have generally learned to keep themselves buffed up with at least Aspersion Lv15/16/17 from a Pardoner, always taking at least that one (1) slot with Sacrament/Blessing being mostly situational + their own buffs.