People will not be able to see your devlogs if you have it in draft or restricted mode. Your project page and all subpage aren't listed anywhere on the itch.io site.
Regarding your question about reviews, reviews don't really make up a big part of ranking on itch.io right now. I wouldn't worry about it. I think as long as you make it clear that the game is a work in progress you'll get appropriate feedback from anyone that discovers your page.
At the moment, on itch.io, the 1st week you make your game public it has a higher chance of rising in popularity on the game listing. I understand this doesn't make sense for projects that receive significant upgrades, liking going from beta or alpha to complete. We're looking into changing how this works for when games want to go through a second launch.
Hope that helps
Thanks