I disagree that you can lawfully carry a pistol while operating a motorcycle. We have been through the "in vs. on" debate before. Regardless of what the law actually says it is open to interpretation and that includes legislative intent.
Secondly I highly doubt that a judge/jury will rule in your favor that riding a bicycle down to the corner store or around greenlake as a lawful outdoor activity considering all present circumstances. This law was clearly written with the intent to allow persons in the wilderness to have the ability to protect themselves without the need for a CPL.