Yeah I think that's the case.i think the low number of downloads is related with the fifa2x platform...
Maybe people also aren't sure about 14/16 compatibility.
The newer FIFAs seem to go further and further away from the classic modding community, but don't let that discourage you @Voleck .
For one, I've been using your WC2018 kits in my FIFA14 for 4 years and have had hundreds of awesome matches!
I'm sure these works will have years of mileage as well.