Semantics.
Maybe, but I personally believe the values are not equal.
Bonus dice are always of benefit, even if an individual roll did not help. That is a failure of random number generation, not a failure of the affect failing to be beneficial. A brief aside bonus dice are the most mechanically powerful element in the game, followed closely by re-rolls.
Armor on the other hand, yes, it always adds a static number to your DR - but it is possible that that particular number does not sufficiently boost your DR to a point where it grants you edge or denies your opponent edge, therefore the affect does nothing. With the exception of melee attacks now, ranged attacks have such a compact AR number range across the board that there is unlikely to be a lot of swing in the value of armor. It will either help you frequently if you are low to mid-range without armor, or it will likely help you rarely or never if you were already high range DR without it.
I am not a linguistical genius to use to the most appropriate language to highlight what makes constantly applied bonus dice that fail to get hits in a particular instance different from the increased DR of armor not making a difference on a particular attack, but to me the difference between those two situations is significant.