I'm not opposed to rough. It's certainly a valid way to increase challenge. Overdone in many cases, it does take away all tee shot straregies except hitting to the middle of the fairway, but a course with no penalty for missing a tee shot wouldn't be very strategic either. IMHO, the rough should be just deep enough to reduce backspin, not cause lost balls or hack outs, which is enough penalty, at least for inner rough.
As some have said, the rough has really evolved as a means to reduce maintenance. I mentioned earlier this year that I am playing with different widths and heights of rough to enhance strategy. To give credit where credit is due, I was impressed with the second hole at the Legacy, an Art Hills course in southern Michigan.
The second hole, for example, had fw bunkers on the right side at about 240 and 300, requiring a controlled distance tee shot to get a frontal opening to the green. Close beyond the fairway edge on that side, deep fescues await, adding penalty for missing to the premium side.
On the left, there is at least 50 yards of lowly mowed blue/fescue. You can play out of them, but there is a frontal bunker, so I played to the front of the green after my pull hook tee shot, and got up and down. So, on the premium side, there is a better chance of of 3 there, but also, higher chance of 5 or 6 while a safe tee shot should limit your score range to 4-5, unless you play stupid after your tee shot. That creates an interesting dilema.
I wonder if a hole would also be good or better if the roughs were reversed? Say there was fairway or light rough right of the bunkers? It would increase your temptation to play right, and challenge the bunkers, as you have chance at 3, and reduce chances of a high score, at least from deep rough, while playing left would avoid the bunkers but probably take 3 out of the mix. If your "safe tee shot' went to safely left into the deep stuff, you could still make a high score.
Thus, the light rough on the right side would in effect, treat a missed high risk tee shot better than a missed low risk tee shot, which has some merit.
Net, net, rough could be used a lot better for strategy than it really is. Its an area not many architects have really explored, based on my experience.