IMHO, this is a totally unjustified comment. Iceland is a stunning place to visit and forgoing 20 SCs for each flight is a small price to pay for experiencing the country.
I agree Iceland is stunning. I've been there before and will gladly return, but it isn't top of my long list of places I want to (re)visit. There are plenty of other places in Europe that are higher in my priorities at the moment.
Note the shorter mileage also tips it into useful award redemption category. It's all about balance between paid vs award.