Nice boots, but no way I would be happy with paying full price and have the crocking thing on such a noticeable area. I would exchange them for another pair if not too much of a hassle. Once you know it's there, it's all you see!
It's been some talking about that regarding the EG shoes. EG claims it's bad for the shoe as moisture from your feet cannot ventilate through the sole that has a extra lay of rubber. But I just think they want your soles worn faster and get that extra cash on a resole job. Also, if you do the whole resole job why do they care? They will remove the whole sole anyway and put a new one.
I was topying the soles all my life without such problems.
I've done it with several of my shoes, and I do not regret. Really prolongs the life and add extra grip as leather sole can be dangerous at some occasion. I found myself almost falling on bottom couple of times this Summer..