The arbitrary data storage on Bitcoin's blockchain can't be censored. It can only be overt or covert, but it will keep happening.

The decision to create OP_RETURN was to allow for a normalization of the practice, so that it happens in a well regulated frame.

Limits is a different story. We can have limits. Making everyone go crazy about a size limit is a genius move by nostr:npub1lh273a4wpkup00stw8dzqjvvrqrfdrv2v3v4t8pynuezlfe5vjnsnaa9nk imo. Although he could've been more polite and ask people to modify their systems beforehand.

However, there are tensions between Ordinals people and Bitcoin Core people so... But that is a human failure. Technically speaking Luke is correct and there is no reason to keep any data storage limit high.