Here's my issue: the whole thing about players having an unfair advantage is easily fixed in one motion -- turning the playmat over.
In my last store championship, my first game was on one of those "space station" playmats. Neither I nor my opponent had ever played on one before and we both found it too busy. We agreed to flip the mat over to a plain white surface.
The same approach could easily be taken for most other playmats and completely remove any unfair advantages from the images. It solves FFG's problem and doesn't require purchases of FFG accessory items.