Kurotowa
Legend
I think it's because VM is signature but not essential. Eldritch Blast is essential for Warlocks because it's just that much better than any other option. VM is unique, but not that much better. It doesn't outshine other cantrips, much less subclasses like Dance or Valor that want to make melee attacks. It's nice to have VM as an option no matter which spell type you pick, but it isn't required like EB is.I find it interesting that the Bard always has the option to take Vicious Mockery, and Vicious Mockery is a bard exclusive spell, but they don't get it automatically. I find that strange, and kind of off-putting, but I do like the improved damage. (I guess it had to be competitive since it now competes against all cantrips)