Even when things are subjective, there can be some objective reasons to support an otherwise subjective opinion. And the fact something is subjective
is the reason it is worth talking about, because the variety of opinion and experience makes for engaging conversation. That's part of the fun of this hobby and this forum.
That all being said, I mentioned in a previous thread that some "legacy" or "classic" blends disappoint me. I did not enjoy Three Nuns too much, and though not terrible by any means, I do agree with others in saying Presbyterian is a little boring. (I also don't much care for latakia blends, so I'm not unbiased here, though I've heard some say the blend doesn't have latakia in it. I mean, it sure tastes like it to me.)
I think I figured out why many legacy blends fail to deliver. At this point, there are many other blenders out there that are doing what they do, but better. Three Nuns isn't terrible, but there are so many other DFK blends out there that are more flavorful and interesting. Some of these legacy blends have been around for decades, and when they debuted, they probably were pretty darn amazing. But there are other options now that are better. Add that to unreasonable hype, and yea, some come out disappointing. I haven't had any that I thought terrible, but I've had some that I won't be keeping in rotation.