Well, there's only 26 words afterall.
When we're msking random names, We're not trying to be random for the sake of "randomness".
We're trying to get name as quick as possible without pondering too much time.
Look, even the name of Half Life 1's "Black Mesa" and their location in "somewhere around New Mexico" is actually decided on the spot, for less than 5 minutes, with some "randomness".
They use the tactic of "raise questions" as much as possible, And then let the fan make up their "Fanon" asnwer later on. All to save time.
We know that too much randomness would be absurd, and do not make sense at all. Things have to be interconnected ro some level.