As HON and also as a Centurion card holder tbh this doesn’t bother me. If it was FCT access or ZRH FCL access I’d probably be more annoyed. I get why LH want to show their most empty FCLs off to people who can afford to buy First Class ticket.
Also, quite frankly, a lot of Centurion members have no idea about these sorts of benefits... and the no guesting policy will keep a lot of card holders out anyway.