Accidental trigger pull was the concern. It seemed to me that the half cocked trigger pull was long and heavy enough to be safe but I'm a novice and wanted the opinion of the more experienced.
I'm not worried about carrying my P-01 half-cocked, b/c like you said the trigger is long and heavy enough to still be safe.
My other favorite carry piece is a CZ 82. It's trigger is so glassy smooth that I won't carry it cocked & locked, b/c I'm worried the saftey will get brushed and disengaged, leaving it too easy for an accidental trigger pull.