No question a short-haul pilot doing a 4 sector day of 7 hours total time gains far more experience than a long-haul guy doing one 7 hour sector.
The accumulation of aeronautical experience is not just a matter of doing T/Off's & Ldgs. That just improves your motor skills. If it was, surely the crop duster would be the most experienced pilot.
Gained experience is an accumulation of all the challenges that one is faced with, to safely pilot an aircraft from A - B.
Having been exposed to both short and long haul flying during my own career, in my opinion, total hours, particularly for an airline pilot is a perfectly adequate measure of overall experience.