Because in practice that "always-on DRM" is actually just purely an advantage for the customer with zero downsides. It only sounds like you're making a good point when you frame "provides the best shopping and library experience in gaming" in the least charitable way possible. The Valve hate-boner is so weird.
I hope everyone who is so outspoken about loot crates are also fighting for TCG packs to be banned/regulated because they are literally the same level of "gambling".