1 hour ago, Turan said:

What is the status of competitive play with Legion? Do people use/accept e-mail rulings, or ignore them to play RAW as best as possible?

Pick a store, get a different answer. You’ll need to feel out your local meta on the topic.

1 hour ago, Turan said:

What is the status of competitive play with Legion? Do people use/accept e-mail rulings, or ignore them to play RAW as best as possible?

I've seen/heard people debating that for as long as I can remember playing these games. I know our local community in pretty much every game (X-Wing, Armada, etc.) takes email clarifications into account when making rulings that aren't necessarily clear.

Personally, ignoring the word of the game designers (and thinking that one knows better than them) is just an absurd notion to me.