Those are SKUs that they are planning to release, thankfully.
In Sports games must account to 50 SKUs on them alone, so it's not THAT many games.
Wouldn't the number be too low if it was SKU's though? They have 3 sports licenses now which they will presumably be releasing yearly, NBA, WWE, and PGA Tour. With 3 SKU's per game, PC/Xbox Series X/PS5, we'd already be at 45 SKU's, and we can't forget that sports stuff will be cross-gen for the first few years, so that would mean 5 SKU's, 6 if any of this sports stuff ends up on Switch. They say that they only have 47 releasing from existing franchises, so sports stuff alone would take up all 47 if it was SKU's. We know they have non sports games releasing in the next 5 years, like the new Bioshock they are making.