3D blur filter

There is an issue with the blur filter that has been around since the first version of Substance Painter, and I can't understand why it hasn't been addressed yet. 

The issue happens when you try to blur something close to a UV seam - which is often unavoidable. Example:

Note: while there is a workaround involving the blur tool to mitigate these artifacts, it demands a considerable amount of effort. Moreover, it's easy to miss these artifacts if we do not meticulously inspect the entire model.  

Is there any plan to resolve this issue permanently? I have observed numerous colleagues expressing frustration over this. Please give this matter the attention it deserves.

Thanks.