What's missing from consideration in this card is the number of persistent treacheries that could be cleared from another investigator or a location with this card. Consider Voice of the Jungle from TFA or really any of about a dozen from TCU where they sit in an investigator's threat area until an action will test is succeeded. This card gives you an incentive for clearing someone else's will test beyond just freeing them up, in that you get a card draw so the action isn't totally wasted for you. In a 4p run of TCU you could be using this almost every turn even without drawing the tests yourself or having Let Me Handle This.
Probably not the best use of actions for your primary seeker, but this card can be very handy in TCU for anyone who can take level 0 Seeker and has a high natural will as the designated treachery handler, and has a surprisingly long list of persistent treacheries it can be used on (some examples but I found at least 15 in core, TFA and TCU):