Yeah this doesn't prove anything as far as the 570sp and 12" rims are concerned. It only proves that stock rims don't fit. I'm willing to bet a 4+3 offset on a 12" rim will work on a 570sp.
Also this whole hating on 14" rims is a lack of knowledge and buying into misinformation. First of all 14" rims cause no more or no less pinch flats the 12" rims its the tires that wrap them is where the problem lies. In the off-road community the general rule of thumb is you want a 2:1 ratio tire to rim diameter. If the tire to rim ratio deviates to much from that ratio the user will run into problems. I run 26" tires on 14" rims and it is absolutely the best combo. To crunch some numbers my 26" BH 2.0's measure 26.75" @5psi. So on my 14" rim the ratio is 1.91:1. Don't buy into the misinformation 14" rims work just as good as 12" because there are pros and cons to each and basically the rider needs to make an informed purchase based on his riding style, needs, and environment.
And I'm willing to bet you are wrong. The OEM wheel has a 4+2 offset, and if you look at all the pictures, you will see the wheel is still at least an inch from being seated on the hub. A 4+3 offset gives you one more inch to play with, but it would still be against the tie rod end when fully seated on the hub.
As for 26" tires on 14" wheels being the absolute best
, that is crap as well. If you just ride smooth, hard packed trails, I'm sure you would be on the money with that. My alleged "lack of knowledge" cost me $330 worth of tires, riding the exact same trails I had ridden for years with 12" wheels and 26" tires. Never had a flat prior to the two pinch flats, and haven't had one since going back to 12" wheels. Anyone who rides rocks knows the truth about the 26/14 inch combo. It simply is not suited for the job.
They say a picture is worth a thousand words. You have been offered up some 7,000 words worth of proof in this thread that actually, visually, show problems, and yet you continue to deny that the problems are real. If you would kindly go buy yourself a 570 SP and show us all how you fit 12", 4+3 offset wheels on it, then I could eat a helping of crow. Since someone who does actually own a 570 SP showed us all that a 12" wheel doesn't fit, I think my crow dinner is safe.