Just to add my view point,
Go drain the bike without adding any oil to it to see what is left in the crank case.
I would then notified your dealer of this usage and let them know there was not an oil usage issue prior to the head repair.
Here is what happens with replacing valves on an older engine.
When I used to own a shop, I always ask the customer to sign an acknowledgement that if we are to perform a valve job on an older engine that the rings may give out after the new valve job is done, this is due to increase pressure from the new valve job and put additional pressure on the next weak link.
You can buy an oil dye and add to the oil, see if the is leaking or being suck through the intake vales/seals. Maybe they forgot to put the valve seals in thinking that without the seals it may help lubricate the valve stems more.
The oil control rings on your piston may have given out or weaken when you had the ticking issue and now it is more pronounce.
If the engine runs fine, chances are your compression will be ok, you can ask your dealer to do a leak down test and compression test to see if the rings and valves are hold pressure.
Did you ran low on oil when you had the ticking issue?
If it is the valves, it will smoke when you decelerate where the vacuum is at the highest point, if it smokes under acceleration, then chances are is your rings and it is blowing by the rings and you will see lots of smoke in your crankcase if you take the oil cap off while engine is running and give it some gas.
Anyway, if you have the YES plan, I would just take it back and have it fix right, you can't afford to have your engine seizes while ridding because it ran out of oil.
I remember the days where dealers was telling customers it was acceptable to use one quart of oil every 800-1000 miles, for a car, that will be 5 quarts in 4,000 to 5,000 miles, why bother change the oil when you are always adding to it, just change the filter and add a quart of oil, and you are good to go. And this is the standard they stuck by, so go figure.
Try to verify where the oil is going first then take appropriate action after you have determined the cause of the oil lost or usage.