I would also vote for adding panorama stitching to DxO PhotoLab. My present workflow (shooting composite images of murals) is an awkward blend of software that involves GIMP, DxO ViewPoint, Kolor Auto Pano Giga, and DxO PhotoLab. Integration of panorama stitching into PhotoLab would make life a whole lot easier.
I’ve found that panoramas shot from a single vantage point with a handheld camera can be sewn together nicely with either Auto Pano Giga or PTGUI. I presume that this minimal functionality would be easy for DxO to replicate. When the overlap of images is poor, I can often construct a decent panorama by applying a perspective correction first and then sewing with APG. PTGUI is very unhappy with this approach, apparently because it really expects to find a common camera position for all the images it sews together, and the perspective corrections confuse it greatly.
A related issue, where APG is able to produce composite images and PTGUI is not, is when the individual photos are shot from different positions. Sometimes this is necessary, as when there is glare on the subject or when there is an obstacle in front of some part of the subject. APG can often construct a composite, although post-processing is necessary to correct some overall distortions.
I’m not sure what APG does algorithmically that PTGUI cannot do, but when DxO develops panorama sewing capabilities, I would hope they can match the remarkable flexibility that APG offers.