Are you aware that Mercedes has L3 (in limited circumstances) rolled out already?
And taking legal liability in very narrow (essentially useless) circumstances is exactly why it’s a marketing thing. It’s to make it seem like they have an advanced system when there is no evidence of them having it or having any realistic path forward.
After reading that, it's hard to tell what Mercedes is doing. :/
Hopefully it's not just marketing bullshit, but I guess we'll all only find out over time.