>>96290786
All roads lead to Damascus, anon.

If the core audience stopped paying, that would presumably produce a more-or-less flat decrease in sales. However, that would show up in the data as non-UB having a higher percent sales reduction because the sales of normal sets are lower.
This would then be interpreted as "players are rejecting non-UB products", instead of anything about product fatigue. This would then provide a mandate for WotC to triple down on UB and scrap the internal Magic IP almost entirely.