there are exceptions, but even you have to admit that most (over 75%) of the new riders (no experience on a motorcycle) on sport bikes (inline 4 race reps) end up hurt, yes some only minor, some moderate, but most fatal. People learn at different paces, some people can pick things up real quick, some can't (and some should never even ride a bike, no matter what style of bike LOL, I mean I have seen some people on a cruiser even that should just give it up)
The main problem that I see (and this is just me) with new riders wanting a sport bike, is they want the coolest, fastest thing there is, it's all about the image. There are safer spot bikes to learn on, that still look cool. The Suzuki SV650, the Ninja 650, several V-Twin bikes out there that are not going to plant someone on their ass because they twisted the throttle a little too much that once, or throw them over the handlebars because they grabbed that lever a little too hard. This is just my opinion, and I know it is not what everyone thinks, but I will still do my best to advise anyone that asks to get a better suited bike for the learning process, then after some time getting used to it, and learning what, where, when, and how, they go out and get that litre bike they always wanted.