Pretty hard to render even a guess without seeing the indentations. If they were simply depressions in the clear coat, probably no big deal. However, if the levers rentention bolts were way over tightened (spec is 60 kgf-cm) and the structure was deformed, that would be some cause for concern.

If it was me, I'd either call or send an Email to FSA's tech support folks (with a photo that clearly shows the extent of the deformation) and get their reading.

Here's a cut sheet for FSA's bars that provides some other do's and don'ts plus the torque specs.
http://road.fullspeedahead.com/downl...dHandlebar.pdf