All the other welcome pack customers who would also add the Multi sports package is also probably additional lost revenue.
You are not alone. I have been saying for years that Multi-Sport should be available as an add-on for the lower packages. It is the simple argument "I am willing to pay you
more money per month, just not
as much more as you want me pay in order to qualify for the sports channels." So as it is, I simply watch the free previews of NFL RedZone each year, and the NFL can go without my revenue or viewership the rest of the season. If it is the NFL insisting on the higher tier placement, then maybe they will learn their lesson eventually. If it is not the NFL's decision, then it is clearly a case of Dish discriminating against the NFL. After all, Dish does include MLB Extra Innings and NHL Center Ice in Welcome Pack:
my.dish.com
Yes, I realize that the logos and channel numbers referenced in that chart are for the free slate channels that remain unhidden year-round in order to advertise for those packages. Any actual content on those channels is blacked out unless you pay extra to get those packages. However, in addition to no NFL channels being listed there, NBA League Pass is also missing from the list. So, maybe Dish thinks that lower-tier package subscribers only care about baseball and/or hockey?