Most guides (In fact, all guides I've come across) are entirely focused on end-game raiding.
The "Basic knowledge of rotations" I often actually had to look up what skills they were even talking about because they wouldn't even mention the actual name of the skill (Either using an abbreviation or just the ability icon) as well as they often provide multiple different rotations for different team compositions or buffs that are active.
Which aren't exactly the most simple thing if you're brand new and suddenly are being told 3+ different rotations.
As far as tooltips go?
They aren't going to tell you anything worthwhile.
Tooltips are why we get Ice Mages.
Tooltips are why we get DRK's running around without Darkside active.
(Since they read "Can't regenerate MP" on DS/AF and think it's a bad thing)
Tooltips lead a number of BLM's to try spamming Flare at level 50 when they unlock it (Since the tooltip says it does more damage than Fire I or Fire III, so I should just spam it right?)
Even with tooltips, I've had to personally do the math about many jobs rotations, factoring in cast time, potency, re-use, ability to weave, damage per resource etc. None of this was presented in the actual tooltip. Nowhere in the tooltip does it say "Upheaval is better damage per Beast Gauge than Fell Cleave as long as you're above 60% health"
This is no information.
This is like that time I had to do a physics exam and literally hadn't been taught anything by my teacher at that point. I was handed a sheet with a bunch of formulae on but it didn't help because I didn't have the fundamental understanding of how and when to use them.