Not everyone can clasp in back as it takes shoulder flexibility. Some will clasp in back, but down lower, hiking the bra up after hooking. Hook and spin is perfectly acceptable. And a good way to check you didn’t miss a hook, or it’s misaligned. How embarrassing!
Limited shoulder movement might require a front hook bra. Then you have the option of a long line bra to help flatten the tummy.
My future husband had a sneaky method of unhooking a girl’s bra at parties while giving a hug. That’s a rare talent.