I'm sorry but I strongly disagree with you on this one.
Wobbling steering is not normal at all, yes there are instances where it can happen, but these are exceptions and most certainly not the norm.
And the scrambler is not an unstable wobbly bike either. If yours is then I suggest taking it back and getting it looked at as something is broken.
I rode 2 different Scramblers, both of them brand new - testing bike and mine. Both of them behaves exactly that same, so in my opinion wobbling is normal in Scrambler at hight speed. At low speed it never happened to me. Even Ducati seller agreed with my opinion after the test drive I had. We know Scrambler's front end is very light and I think this is the most important point why it might behave like that.
Of course wobbling can be really dangerous as it might be very aggressive, but it might be also very light. If you think about very hard wobbling, which is very hard to control than I totally agree with you, it's not normal and it shouldn't happen. But if you can manage with it only by deceleration and it's very light, than I wouldn't even think there might be any malfunction in a motorbike.
And once again I am going to say that it happens and it's normal in some circumstances. Actually it's not only me who has opinion like that:
On Wobbling Motorcycles
As we can read in the last paragraph:
"Most riders would agree in one point: the best way to make it past a wobble is riding in such a manner so it would not occur. This means no wheelies, no brutal acceleration on bumpy road or in turns and so on."