Yes and no, if you are in a dedicated Linkshell, you will probably get all of the weapons. But you have to consider how many hours did it took to get those weapons. I have 7/7 Ifrit and Moogle, but it took me over 500 battles for Ifrit and about 350 in Moogle. The drop rate was bad with Ifrit until SE added the Tokens, Garuda will give you 2 totens and when you get 40, you can purchase a weapon from the NPC. Still that is going to be 20 battles per weapon, if you are unlucky those are 140 battles you have to win.
If you don't have a good party that can tackle the battle, like I currently don't have, then you are out of luck. That is why not everyone has the Garuda weapons.