It's not comparable at all. Knots is a joke project made by an obviously incompetent loser, clearly meant to be a social attack upon Bitcoin.
Primal is not a joke project, but it is a centralized service. Feeds stopped working in the recent AWS outage. Primal is like if someone was claiming to sell Bitcoin but it was just a ledger held in a MySQL database. It’s more of a deliberate fraud and less of a ridiculous joke.

Cypherpunk Cogitations
It's Knot a Serious Project
A comprehensive compilation of controversial actions and statements by Luke Dashjr.