Ridiculous? I'd bet the farm many folks around here would love anything that was packed in that Stihl Ultra container, whether it be WM dino oil or lubricated dog piss. Some people are just simply blinded by brand loyalty. Sad, but it's very true.
Stihl hater? Quite the opposite. I love most professional level Stihl products. In fact, I wouldn't be surprised if I own as many (or more) Stihl saws and products as you do. The difference is I'm not a cool-aid drinking Stihl leghumper and I'm smart enough to realize that someone other than Stihl can make an equal or superior product, and possibly offer better services (such as offering mail order parts)... and that goes for oils as well (which quite frankly, Stihl is certainly no expert in oil formulation or production). If Castrol stopped supplying oil to Stihl, whoever took their place would no doubt be seen as the second coming around here.
Anyway, go ahead and get back on your tractor and continue preaching about oil...