Great stuff in this thread!
The technique specific rods are usually what the rod company had in mind when they designed the rod, possibly to suit their pro staff. On most of these rods, the power and action are also listed. You don't have to use the rod for the technique listed, it's just a suggestion. In my opinion, the rod companies have started doing this because it encourages people to buy a different rod for every technique. It is a subtle sales pitch.
We all like shiny things, and we anglers have a particular propensity to feel like there's one [rod/reel/line/lure] that will revolutionize our fishing. Fishing tackle manufacturers capitalize on this.
Neither of those is a bad thing, mind you. But I wager most of us would be far better served by working on improving our ability to analyze water and find fish as opposed to adding more techniques and gear. YMMV.
If anything have one rod for flipping and pitching medium heavy - fast/moderate action, one for finesse baits medium - fast action, and one for crankbait/medium-small swimbaits medum heavy - moderate action.
Great advice. I would go so far as to say an angler could easily get by with two - the MH/F and M/F. With care, these can be leveraged to cover just about everything you'll find. The only downside to fewer rods is the need to re-tie every time you switch tactics.
FWIW, that's the setup I'm taking to the water this year after getting by all last year on a M/F only.
(Ok, that's technically not true... I carry an UL/M rod as well for whenever I want giggles. )