Apologies for the radio silence, as we have been hard at work testing various alternatives to resolve this issue for you. We weren't confident on posting until we had a confirmed solution, and to that extent I'm happy to announce that we have just that.
We're going to roll our changes out with Patch 1 which is due soon. This will include an option in the advanced graphics settings to enable or disable post-processing sharpening.
I'd like to thank you all for making us aware of this issue, and I look forward to hearing follow up feedback regarding our solution.