Well, we already know that magic in our world is a little unpredictable. It took Regina a little time to get her powers back after magic was returned, Gold said that it was behaving differently, and based on how Gold used the wand he had in the mines, they need fairy dust to fuel the wands. There’s been enough time for BF to have found her wand in some manner (though, yeah, it’d be nice to know how), but Gold and Regina took all the immediately available power from the mine when they were trying to keep Cora out of SB. So maybe BF doesn’t have her full power atm.
Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing