IMC, really?
So if i have multiple characters on account - they ALL are left out of this title (and title level/bonus stats) forever.
In a game where titles are not just a cosmetic thing, it should be a common sense to give opportunity for all characters to have it. Previous Root Crystal event was also flawed in this way, but with enough luck it was possible to get title on multiple characters.
In a game like Tree of Savior, which is “team” based it is logical to make titles shared across all characters in Team. This also applies to some other titles like ones that require huge amount of overkills - a thing inaccessible to some/most support builds.