This is a stupid idea, but before I get to that, I don't see jerseys as being the same as the NCAA football games. The digital recreations were almost exact copies of real life people, save the face. Height, weight, abilities, skin color and jersey number were identical. Multiple factors associating themselves to one person. Just one of those factors, to me, is not an association with a player.
That said, I guess if people did see a black #80 jersey from the 2013 season, they'd immediately think Kenny Bell. I get it.
I digress - however, the reason this particular idea is stupid is because you're still selling jerseys that directly correlate to another player! When the year 2022 roles around, given this policy is still in place, those jerseys are going to sell like hot cakes. Hmm... wonder why? Everybody just loves the year 2022? Or everybody just loves 2's!?
No, it'll be because of Rex Burkhead. You could go around and ask every Husker fan on the street that year who they associate the #22 with and, unless another great player comes along and wears it, most people will say Rex Burkhead.
The idea that they're being "safe" by doing a default 1 and the year, and this somehow protects them, is ludicrous in my opinion. The jerseys still represent real people to some fans, and limiting when you actually sell that jersey does NOT change that association.