Dillinger. As a newb, you will find yourself confused and upset many many more times in your riding future.
Your first mistake was bringing the bike back to a dealer to fix anything.
They will pay for repairs done correctly by another shop if still under guarantee.
Better yet, get a few books, research stuff on the internet, buy some basic tools, and get this stuff done yourself.
Besides, anybody who trusts a dealership to do work correctly is waiting for disaster. Countless faulty repairs from dealers have left many people skeptical.
If you had researched, you would have found out that a leaky output shaft seal will never ever "PISS" out oil enough to drain your engine of oil or dump enough oil on the rear tire to cause a crash.
You need to calm down, go get your bike from the dealer, tell them to call you when the parts arrive, and then tell them that you need this work done while you wait, when said part gets in.
Good luck my friend.
I can't wait to hear you stories about bad drivers in the GTA.