It's not just the alignment!
The spacer; being to tall, a allows the hub to wallow, instead of
Lay flat as it turns.
Mines a 2012 and they still hadn't resolved the issue in the USA.
Unless a previous owner changed it, I would expect yours needs changed, unless your not in the USA.

 

It may? wallow but I have no evidence of excessive wear on the rear sprocket. The rubber dampers were also changed in the process, they showed a bit of wear. At 37,000 km I'm happy.

 

I was told the bearings would wear premature too, making all manner of vibrations and unpleasantness.
Glad to hear you have no ill effect.
I changed mine before reported problem surfaced.
I have to feel better, cause I already spent the money.
Let's meet back up here in another 30,000 miles and see how our bikes are doing.
Good luck!

 

It does help this is my 2nd 1000 and my sprockets at 21K still look like new.

 

So in my case a rear spacer is not required.

its never been a issue for me either. 05 DL1 with 118k showing on the clock.

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V-Strom (Suzuki DL1000) | Fuelly

 

It may also be related to how hard you accelerate. Hard acceleration or heavy engine braking is what generates the forces that cause the issue to rear it's head.
Special concern for me, since I ride quite aggressively. Glad I put in the kit.