Are you experiencing any problems with your current fork?
You might save half a pound in weight, but I'd be surprised if you feel that. In theory alloy steerers transmit more "buzz" to the handlebars than carbon steerers, but if you're running 32+ mm wide tires at relatively low pressure that will probably make the fork's buzz absorption irrelevant. If you're using your Snake as a road bike, maybe that will matter to you.
The biggest difference between CX forks seems to be how well they handle hard braking. Many carbon forks shudder badly under hard braking. Forks which allow a fork-mounted cable hanger generally minimize this problem. I don't know how the EC90 compares in either of these respects.