The Respawn and Epic comparison in terms of update is not fair by any means.
Epic killed all their project to focus only on Fortnite and they have way more people than Respawn.
Respawn is making a VR Game, an aunannounced game, Star Wars and doing post-launch support for Apex Legends. You should not expect to see weekly updates and you are not entitled to get them.
Only Fortnite is doing weekly updates at this pace, no one in the industry is doing them or should follow their model
I agree though people who bought the Apex battle pass is entitled to updates. Sell your game as a service, provide the service which includes updates or whatever the market demands of it.