Opinion on traction can vary from person to person. I think that the traction on my Michelin LTX's completely went to heck as they aged (and actually contributed to an accident), but others will tell you that it is the best all-around tire on the planet, bar none. I don't know.
This is no different from opinions on cars, boats, or anything else. Unfortunately, that doesn't make the apparent inconsistency any less frustrating. We owned a minivan that was so bad, I probably wouldn't buy another one on a bet, but the same model year has been good to you. Lemons seem to happen. I know in my mind that the chances of us getting ANOTHER lemon minivan from that same brand are slim, but it's hard to separate fact from emotion. I know it is for me.
How people seem to have such wide differences in experiences on the same tire, no matter what that tire is, is beyond me. There are, of course, a lot of variables at play. Probably too many to list here. With this type of thing, I generally take most of the reviews available out there (CR, Tire Rack, etc), throw out the extremes, and hope to achieve something in the middle.
This is one reason why I stay with the brands that have been good to me, and is also a reason why I stay away from brands with which I'm not familiar. Motomaster tires aren't reviewed a whole lot, so you have a pretty small selection set from which to generate reliable data. This certainly isn't to say that the tires will be bad or good...but that's the point...if I don't have a lot of confidence in my understanding of something, then I won't gamble with my wallet. And with the case of tires, they're a riskier proposition than something like a TV that turns out to be a dud. I'll buy tires that I have a high level of confidence in, even if they're more expensive than others, because there really is a lot riding on that purchase... Will I get a dud one day? Perhaps. I haven't yet with the brand that I've been buying, but they're all mass-produced pieces of rubber, and I'm sure I'll find a dud set one day...just like I found a lemon minivan a few years ago.