no offence but i think the mains are fairly balanced at the moment, in fact i think fire main is quite popular compared to the others

so yea, actually not much additional boosting is needed (imo) even thou i understand what u meant by the tag usage.

in any case some skills are indeed quite outdated, as far as later game is concern it's quite ez to remove buffs and shields

thus you are fairly right in saying that almost no one that use fire main rely on secret jutsu tag, and it would be lovely to update it

either to give a slight application or different utility, but idk. . can think on it. . there is potential there. . (imo)