Let's break down the man-hours that Nadeo would have to put into that solution. They would spend very little time on development before release. After release, they have to put in regular time, and constantly monitor what goes in, communicate with upper level employees, and decide what to actually make, test, and include in a pack.
On the other hand, they could spend the time before release to build a tool that everyone can use without vitally needing their approval, and then spend 0 hours after release monitoring submissions. This assumes that they wouldn't have to fix bugs, but there will always be bugs to fix.
I think the latter option is the better option for all parties involved. Once again, that assume that they're going to do some implementation at all.