Less, actually (less positioning, less tracking, less decision-making).
But that's beside the point. Phlebotomize didn't prevent Lance Mastery II any more than Heavy Thrust did (which coexisted with our 5-step rotation).
Technically, that part, like Impulse Drive giving combo progress only on rear attack, was removed before Heavensward (replaced with only the damage bonus, and with ID's positional being moved to Chaos Thrust). But, those positionals were a far larger portion of potency than they are today.