The blue smoke which is oil being burnt is not from the valve stems seals but the excess oil on the bores of the cylinder and not the valve stem seals.
Why? I hear you ask, it's simple really, consider this:
The volume of oil to the head is directly dependent on the oil pump, this is dependent on the rpm and not the volume of oil in the sump. The pump will flow the same volume of oil whether or not it was over filled.
Simply put the oil pump controls the oil to the head of the engine.
Should it still smoke a little after refilling with the correct oil level, then you still have residual oil in the catalytic converter and any baffles in the exhaust system. As per above, drain the oil and refill to the correct level then drive for a while and it will clear.