Unfortunately it is not a matter of what we think. The fact is that it could go as a non auto 6, meaning any grade above, or it could be 6’d. There are examples of people with 8’s here on the forum that are way worse offenders on the edges, in multiple places.
Should it get auto 6’d? I think it would be nice if they were consistent, and it was known whether or not that would. I’d say that is different than an indent or bend or crease. It is a “ding” on the edge. That isn’t covered in their, shall we say, memo. And dings, condition wise, are different from indentation, bend, and crease.
In short, it could go either way mate. Look at this “8”.
www.elitefourum.com/t/parkers-firsthand-psa-collection/30834/1