I might point out that I've seen this dangling symlink myself and it can result in https errors and the snap failing to work under some circumstances, so the review tools are reporting a real error in the snap.
I have to manually unpack the snap (unsquashfs ./name.snap), remove the symlink, copy the real files that it expects into place and then repack the snap (snapcraft snap ./squashfs-root). I'm not sure what the correct solution for the plugin in, but this is a workaround for this bug.
I might point out that I've seen this dangling symlink myself and it can result in https errors and the snap failing to work under some circumstances, so the review tools are reporting a real error in the snap.
I have to manually unpack the snap (unsquashfs ./name.snap), remove the symlink, copy the real files that it expects into place and then repack the snap (snapcraft snap ./squashfs-root). I'm not sure what the correct solution for the plugin in, but this is a workaround for this bug.