I'm not sure it's entirely necessary or desired. At the high level of play, most crew will automatically go with what the captain suggests anyways; some even go so far as to ask them directly what to bring. For helping new players, you'd essentially be giving them a crutch, making them take longer to figure out how to change their loadout, and possibly preventing them from experimenting. There's also the people that absolutely hate being told what to do and bring, and this feature could get on their nerves. Then there's how it would affect the captains that already refuse to ready unless everyone brings exactly what they desire to a match. Suddenly they'd have a feature backing up their demands, possibly giving them a bit more of a power complex.
In the end it could save some time, but is it worth taking the time and effort to develop a new feature that shaves off 10 seconds of typing (and even less time talking)?