I am pretty certain the books are not spelling out "If you do not have the ability, you cannot do the thing". I think this was a hotly debated topic with regard to the appropriate interpretation/implementation. You clearly ended up with the hard liners on one side. Draw Steel for instance is explicitly calling out this issue presenting another valid interpretation - that the abilities allow things to be done automatically, while if you are going to do it without the ability you must resort to the more general base rules for doing so.
Indeed this schism I believe can be traced back all the way to the introduction of the thief skills.
That is this is not about ignoring rules, it is about how the players decide to interpret the rules. And flexibility of interpretation might in some cases (not necessarily in this) be desirable as a feature to allow players to tailor the experience to their tastes.