I'd say that you are correct
For me it is like first you go do say 20 or 40 laps on race setup to figure out the line and get the feel of the track. The turns which have fairly long straights are all mostly equal in technique. Then after some hotlaps on hotlap set you watch WR replay and learn from it: what he does differently, and why? You must try to figure out why he does it differently, so that you learn something, not just remember the particular sequence of brakes/steering/throttling and next track your guesses might be better!
Sometimes you want late or early apex depending on setup and downforce (later apex if you exit to a long straight for example).
Sometimes there are bunch of a turns/chikanes when you have some options and sometimes if you are limited in practice time you stick to the line you are stable on, not the fastest you saw in WR replay.
Sometimes you want to have straight brake lines (say if you must save tyres for any reason), but ofcourse they might not be the fastest.
Try this site or google more, you should try different stuff until you get the picture clear enough.
http://www.drivingfast.net I found it quite interesting to read some time back.
PS this post was meant to be a short one