It's a dumb requirement. They should either handle it one of 2 ways:

1. Abolish the requirement entirely. Small FCs circumvent the requirement by just shouting for 3 random warm body helpers as it is. Large/regular FCs just get 3 helpers to stand around bored for 10 minutes.

2. Actually change it to require the light party to be all FC members, with max level in at least one craft relevant to the item crafted. Require each step to be completed by a different person in some way, or otherwie require everyone to actively participate somehow. This too could be easily circumvented by small/single person FCs but at least it would be a start.

None of the currently available recipes are difficult for a single person to gather/craft materials for in 3 hours or less, so it isn't like it ever requires a team effort at the moment.