The value of the talent is inversely proportional to the GM's love of declaration rules outside of games like Fate. Yours darkly, for one, is no such fan of them -- especially given that it already has a narrative mechanic attached to the dice.
Exactly.
If a GM simply allows anything to go in regards to a PC spending a Destiny Point to have some bit of gear on hand, then Utility Belt as written isn't worth all that much.
But if a GM s more restrictive (such as limiting it to items with a Rarity of 0 or 1), or requires a certain degree of justification on the PC having the item, the Utility Belt becomes a lot more useful because it specifically bypasses those requirements and allows the player to say "I have this particular item!" while also removing the GM's ability to veto such a thing.