Maybe I haven't seen enough pros play the 2nd but I can't remember them bouncing it in. From what I've seen they would attack any pin on the right half of the green aerially anyway. For the sake of a week's golf once every five years we completely change the hole..
The players it will effect most are those with a 5+ handicap who can't spin the ball and are also coming into the green with a flatter club. Oh well that's probably only 95% of players.
Tom Doak's last paragraph in his piece on the hole in Paul Daley's Favourite Holes By Design says it best.
"To be sure, the second hole at St Andrews is not marked by the sort of terrific hazard - Strath, Hell Bunker, Principal's Nose, or the Road - which makes its more famous siblings so memorable. It is a hole brought to life by simple things, namely the firmness of the ground, and the rippling undulations of The Old Course. In short, it is the quintessential links golf hole, and the perfect antithesis of the more Americanised pitch over the Swilcan Burn at the opening hole."
The only good thing about these changes is that it has had me rifling through my golf books re-discovering this type of writing.