So does this go back to your phone argument or what?
How about this - can you give me a straight up scenario in which you think this makes a major difference to someone? An actual real-world scenario, not just you saying "look at the benchmark numbers".
Most filesystems don't even have built-in compression, and btrfs already has a pretty good implementation. Why do you think the current one is so deficient that an upgrade to it will result in huge user improvements? Personally, i'm glad he's still focusing on things like crashes and infinite loops, because that seems a heck of a lot more important to me.