It's frustrating for me. My husband and I play this game together. When we get something new on the mogstation, we'll often gift something or the same thing to the other. So, like the new mount. My plan was to log into my account, buy it for myself, and then buy it again as a gift for my husband who in game has been my friend for 2041 days. Nope, not anymore. YOU CAN'T EVEN GIFT THE WEDDING ITEMS! 90% of the time I would buy whatever he wanted through my mogstation as a gift and give him the code. It was easier as we use one of my bank accounts for FFXIV. It's my name primarily on the bank account. It's my name on the bank cards since my hubby doesn't know how to budget. Honestly, they should have just made it so you could gift friends on your list, but not limit the items.

From what I've noticed, you can not gift
~Mounts
~Minions
~Bardings
~Emotes
~Orchestrion Rolls
~Face Pants
~Eternal Bond (Weddings)
~Fashion Accessories

Anything that you pop and doesn't show in your inventory or puts other items in your inventory. But you can gift:
~Fantasias
~Outfits
~Housing items
~Dyes
~Story/Job/Retainers skips