Wrong cooking instructions on a joint!

I bought a small piece of pork - (Asda Extra-Special, otherwise it’s German or Dutch and almost certainly factory farmed) - only 700g, and the instructions said to roast at 220 (fan) for 60 minutes (!) followed by 15 minutes at 170 (fan).

Obviously it should have been 15 mins at the higher temp, 60 at the lower. Not a problem for me, but for any inexperienced cook? You’d end up with a pretty burnt offering!

I suppose I’d better email customer services about it.