Hello,
I am inclined to agree with most of what you have said, as I like many others have dealt with this kind of frustration. I know there are several threads that talk about dice rolls, formulas, fail rates and more, but at times it feels like you as the player are being cheated. When stealing an item that requires a roll of 4 for example and you automatically fail said roll can be frustrating. However, it is even more frustrating when you save scum and reload 6 or 7 additional times to get said item. Once you acquire this item, you have a chance to steal a better item, usually armor, that requires a roll of 16. When you had to re-load the same save 6 or 7 times to get the low item, but do not have to re-load again to get the 16 roll item, it seems kind of fishy.

Perhaps we are just that terrible at rolls or maybe the game is saying "okay you have rolled bad enough for one day here's a gimmie." It almost feels disingenuous at times. What are the odds of rolling 1's, 2's and 3's and having to reload 6-7 times in order to get a 4 or above.

I know there are other players out here that will disagree with much of what you or I have said, but I also agree with your thoughts on the trap mechanic. At some point it should just be an automatic if your stats or skills are proficient enough in said circumstance. If you do not meet the requirement, then yes it will blow up or whatever it does, if you do, then you win. Of course this is a dice game based off of 5e so I doubt it will happen, but I feel I see where you are coming from.