Well, depends on the your service advisor. Let me give you the other side of the argument here. Say the rather well known issues of roller lifter/pins becomes a problem in the future, they could say your aftermarket oil relocation kit caused it. Effected the oil pressure or flow rates, or any other thing they can make up.
Then you say, "prove it!". Then they say, "nope, take us to court if you want". They then stick their hands in their pockets and walk away as they then force you to prove it. Yes, you can say the Magnuson-Moss act all you want, but you can't force the dealership or the manufacturer to repair your truck if they found an excuse not to.
You then could spend potentially months or years trying to prove your case in court and in the end, may not actually win it. All because of an oil filter that is just a little bit of a hassle to remove once or twice a year?
Save yourself the money of a relocation kit and possible hassle of a warranty issue and just use the zip-lock bag method to remove my oil filter, I never spill a drop. You use 2 zip lock bags. Break the filter loose, slip on the first bag, and drain the initial oil. Stops after a few seconds, remove that bag and slip on the 2nd bag. Then finish unscrewing. Simple, zero mess. I've done 4 oil changes on my truck, and the oil filter isn't an issue with this method, I actually look forward to doing it.
However, if you still want to go with the kit, speak with your service advisor first before you do it. They could be cool and say no problem, make sure to get it in writing just in case.