And in the same court case - it was discovered it was not profitable despite their more limited offerings.
Maybe he meant in the sense that they filtered out the shovelware and asset flips from Epic Games Store (at least until recently) so to make the store look good. That way they’re providing hosting only for the games that actually will be downloaded a decent amount of times, avoiding wasting storage on bad/forgotten games.
But hosting is basically a rounding error in the equation of selling games on an online store. The actually significant cost is going to be in developing and maintaining the software powering the online store, and that cost is fixed. This in turn means that having less games in the store is an obvious disadvantage, not an advantage.