See the thing is that I have a problem with is that people are saying if you don't want to be "powerful" and want a "challenge" (quotation marks because it's subjective to interpretation) avoid these skills, or don't use this, this, and this in conjunction with one another.
I should be able to use a play-style and still have a reasonable challenge.
If I decide to let's say play using smithing, enchanting, with heavy armor, and dual wield swords my play through should still be a challenging as my character that focuses on dropping lethal poisons in enemies pockets. Now the reason I say that it should be as challenging is because of the difficulty meter, the first one should still be hard to succeed at on the hardest difficulty while the second may force me to play on an easier one . But the first build will trivialize the difficulty no matter where it's placed that's poor design.
That's what the OP has a problem with (as do I) when a combination of abilities trivializes the hardest difficulty it's not right, I wouldn't have a problem with abilities making the normal or above normal difficulty relatively easy as long as there's the chance to be knocked on it's ass on the hardest setting.
Now go ahead and pick this apart and say I'm whining or what not I really don't care, flame away mates
because poor design is poor design
*I do apologize though for any incoherency do to grammar or punctuation.*