Very interesting question, Philippe. On the one hand, it takes a very strong golf course to maintain interest for the full 18 is one "corner" stands out significantly. On the other hand, if you do have a strong "corner" the rest of the round is played with the corner in mind... how one stands going into it, what one needs to do... having survived it or not, what what needs to do afterward....
In the end I do think holes tied together make for interest and fun... there's a course I shall be visiting tomorrow here in California called Fort Ord - Bayonet that has a "combat corner" that while weakened considerably as this course has been bastardized in recent years, is still always the "focus" of the round... it goes from 11-16, all very interesting, very difficult golf holes... you know it's there from the first tee, you know it's gonna be tough to maintain your score through it, the holes all tie together wonderfully... it effects you as you play the very tough, but doable front nine...and if you survive it you can attack 17 and 18.... I do like the concept.
TH