Dude, leaving a negative review for a game you have a negative opinion of is not review bombing. It's being honest and helping your fellow consumers come to an informed decision. Reviews are not just for when you like something.
But that's not what you're doing. You're leaving a negative review for an Early Access game which is still under development and not finished. You have no idea how the final product will turn out. All you know is that there was one or more things that you didn't like in Early Access. Things are subject to change from Early Access to release. So all you're really doing by posting a negative review is throwing a tantrum because things aren't the way you wanted them in the game.
How is that helpful to consumers? I'm with you if problems exist in the final release version. Posting a negative review would be helpful then. But this is Early Access and an alpha version of the game. The game isn't finished yet. Things are subject to change. Go ahead and leave a negative review though. You paid your money and bought that right. All you're doing by doing it is throwing your money away. If you have concerns about the game then send them to the developers. That doesn't mean they're obligated to respond to you or do things exactly as you want them done.
My point is you really aren't doing anybody any favors by posting a negative review. Not now with the game still under development. It comes off more as someone throwing a tantrum because the game wasn't made to their specifications. There's a long way to go before this game gets released and a lot can and most likely will change before then.