So how long has that stuff you put in your bike sat in the container on a shelf? I will tell you very few dealers, if any in the current market, change oil out on a new bike that's possibly sat in a crate for as long as a year. They up the oil if needed and send the bike out. If what you are saying was true, manufacturers would recommend the oil be drained and changed - they do not - because they'd be on the hook for warranty claims.
Fresh oil doesn't break down significantly sitting still in a bike. If you expect me to buy that you'd better have some real information, not some word from someone who knows someone. Where's the charting that shows oil breakdown while not in use? Oil breakdown is related to heat and use.
The information I found has a technical shelf life for oil at about 5 years, with the problem being some separation of the blend. The stated concern was more about old oil not meeting current standards. Nothing was stated about parking a vehicle for any length of time. My simple assumption would be that the fresh oil might rinse off any materials, but breakdown would be infantesimal over even a year since there is no heat or use applied to it, that it's a waste to put oil in, not use it, then drain it out and toss it.
I'd be more concerned about condensation that can occur when the engine temps vary in an unheated garage. Thus a good reason to plug exhaust and intake openings to try to eliminate it a bit.