I don't agree that combat reclaim is so impactful as you make it out to be
GoogleFrog. In BA, cons just didn't have the build power to ever really defend themselves this way, only once in a while you would see someone skillfully pull off a clutch reclaim of a low hp unit and it was quite an exciting thing to see.
It's just a little gimmick, I don't think you should take it so seriously. I don't think there's any real downside to having it, I always wondered why ZK got rid of it. It was one of the things that set really good players apart, being able to reclaim something in combat was not an easy thing to do.
Though knowing ZK someone would probably make an OP widget that does it automatically.