Question about Dragonflight professions

Hi! Been looking around google and the subreddit, but couldn't find a straight answer about professions in Dragonflight:

I'm thinking of switching to an Evoker main for the new expansion (right now using druid Herb/Alch). I'm mostly a raid player and am currently the "flask maker" for the group.

In Dragonflight, would there be any "consequences" to choosing herb/mining on my Evoker (which I'll be playing 90% of the time) and leveling my druid second with Alch/another crafting profession?

I haven't played the beta and heard there's BoP crafting materials? Will that affect me if I mostly get them on my Evoker and won't be able to send them to my druid crafter?

TL,DR : Is there any reason I shouldn't have double gatherin on my main (90%+ playtime) and fuel the mats to alts with crafting professions?

I hope i was clear enough and that someone who played/understands Dragonflight professions can help me!