Right, so you're just conceding you lied about being able to set a price lower than Steam on a reseller.
The main issue is not Steam keys. I personally think the Steam key situation is fine, even with their limitations. The reason they're included in the lawsuit, is to reveal Valve's hypocrisy. Valve forces publishers to offer the same price as Steam on Epic, GoG, etc, stores which have nothing to do with Steam's "software and their multiplayer framework". Despite those stores being lighter weight and taking smaller cuts.
Also, if your issue is that steam is a monopoly, then go make accounts in other places and stop supporting that monopoly you’re mad about…
I have accounts on several other storefronts, as should all gamers, but the issue is that Valve's anti-competitive behavior is making every store (including Steam) worse for consumers. I can't get a lower price on Epic, despite that store taking a 12% cut compared to Steam's 30% cut. If Steam's platform is so expensive and awesome and well developed, it's natural for a game to cost more on Steam. But Valve doesn't like its competition to be able to compete the best way they can -- on price.