As others have said, the Gale Wings nerf may have hurt Talonflame a lot, but it won't outright kill it. Talonflame's already fast without Gale Wings, and the PRIMARY reason it's used isn't so much Gale Wings so much as Gale Wings+ a solid offensive typing+ enough speed to outrun 99% of common attackers+a good enough movepool/stats to make it unpredictable and versatile in its roles. Gale Wings was just the icing on the cake. Besides, you forget one thing Talonflame still gets a priority Z-flying move, and if it has to, can use accrobatics.