Again, decals that cover the full sail are discouraged. This includes "weathering" that's applied to an entire sail.
Texturing in decals is discouraged. Very fine textures and subtle color variations
can be acceptable, but it is still discouraged because they're very easy to overdo and ruin an otherwise good decal.
FLS reserves the right to approve any User Content if we feel it qualifies as good game art. We came up with the guidelines, however, to guide people toward making good game art -- they're not there just to be arbitrary road blocks.
That said, if anyone spots what they feel are inconsistencies in how the guidelines are applied, they should bring it to the attention of the 2DSC privately, via PM, with direct links to the submissions in question.