If you can't understand the difference between restoring a broken timeline and breaking one in the first place, you need to spend more time studying the concepts.
That's like arguing shooting and killing a person is someone different because he's holding a gun. If you live by a strict rule--whether legal or personal philosophy--of "Thou shall not kill," then you've still managed to break it. Because, at the end of the day, you still fucking shot and killed someone, armed or otherwise.
If the object of the game is to not change history, then it's an impossible rule to live up to. A person
cannot time travel without changing events or affecting history in some manner. So insinuating that "restoring the timeline" is ultimately some kind a zero sum is either short sighted or disingenuous.
So even if all that happens is Kirk, Picard, etc. did was bumped into someone causing her to drop her briefcase and spill her coffee, which caused her to be late for a meeting, they've still changed the past. And it's impossible to calculate the domino effect her being late to that meeting has.
A person can argue that it was all in for the greater good, but that doesn't change the fact the rule was broken and the future they return to is not the same one they were trying to get back to in the first place.
So having a rule that's impossible to adhere to just for the sake of having it is silly.
But let's take it a step further:
From MemAlph:
All Starfleet personnel are strictly forbidden from directly interfering with historical events and are required to maintain the timeline and prevent history from being altered. It also restricts people from telling too much about the future, so as not to cause paradoxes or alter the timeline
The first part is redundant as it's essentially covered in the PD itself (Which is also a mess of a rule, but I digress...)
The second part is contradictory.
"Maintain the timeline" is, in the grand cosmic scheme, ambiguous at best. Whose timeline is the
right timeline and from what perspective? Changing things to suit your own needs not only breaks the first part of the rule, but creates a paradox in and of itself. And trying to figure out which "path" is the right one and how to best go about righting it only creates paradoxes on top of paradoxes.
If person A goes back and changes history, it affects person B, and person C is created as a result of the change. Person B doesn't like the change so he goes back to maintain the "original" timeline. But this will erase person C from existence, so he goes back to stop person B.
This could theoretically go forever, each time creating a paradox. And no one is 'right" to say his is the best option. A person can use the greater good excuse, but even that is tenuous at best. What if, but allowing the Borg to go back and assimilate humanity, this completely alters their course of evolution? A bazillion things could happen, that changes galactic events that actually prevent them from assimilating (and annihilating) many species throughout the galaxy. So from a galactic great good stand point, it's actually better that they went back and assimilated humanity.
So Picard is "maintaining the timeline" from his perspective to better suit his needs. That's totally contradictory to the spirit of the directive.
It's like Marty in BF2. Yeah he changed things back for "the better" form his perspective, and he was
probably right in doing so, but there's still an element of playing God there, and the question of whether or not he had the
right to do so.
But all this is mental masturbation. And has no business in standard pulp fiction. Which is why Abrams didn't even bother with it. And why, most of the time, other Trek didn't bother with it either. Because, in the end of the day, time travel is just a plot device and should just be used to tell the story the writer wants to tell.
But, like most of Berman-era parlance, this bullshit "idea" was thrown in the mix to, apparently, add validity and weight to a concept, when all it really did was obfuscate.