I actually don't think the handle needs to go, however I do think if it could be made an optional, easily removable component (along the lines of Sliger's implementation on SM series - obviously, don't copy them, but I do think the "door handle" approach works
); or if there were dual handles, possibly integrated into the panel (e.g. how Bitfenix did with their Prodigy cases, although they used flexible plastic) itself to save on internal space; or "pool railing" (what I like to call it) style handles (a la the Mac Pro, though I'd like anodized or other matte black finish with textured rubber/silicone grip).
Personally, I think dual handles would work best given this case is straddling the area between strict SFF and traditional micro-ATX sizing - single handle is a bit awkward for larger cases - and dual-handles allows for more secure grip and evenly distributed weighting, which helps with something that can be potentially very dense/heavy for the size fully-built. I'm assuming the current handle was an off-the-shelf/bin part from Lian Li, so it's understandable if it's easier and cheaper to use, but it does seem to cause a bit of clearance issues with the incursion into the top mobo space. ? The folding action of the handle is nifty, but for this type of case I don't think it needs to be.
I do like the mesh front a lot, the potential CPU cooler clearance, and the fan/radiator support. Additional ventilation would be ideal. If you add filters, please make them magnetic. I'm hoping the windowed panel is tempered glass, but if it needs to be plastic please make it polycarbonate or any other material that is scratch resistant (acrylic is just terrible in this regard, especially for any case that is designed with portability in mind, even if it's just to move the case across the room).
I really like this case overall otherwise and the niche it fills in terms of mobo compatibility and volume, and some limitations are to be expected. ? Compact home Threadripper server/workstation. ?