The "Professional" moniker signals improved workload capabilities more than it does mobility/battery life. Essentially, Apple needs to change "MacBook Pro" to "MacBook On-The-Go" and just admit they don't have a Professional device.
When you think of a person with the title "computing professional", is your first thought, "Gee, I bet this guy spends very little time around power outlets"? No. While that may be true in some cases, that is not what the word "professional" means in the English language.
