[garygao]

SMS/RCS is better for some use cases (e.g. transactional messaging, promotions, or order updates) while iMessage is better for others (e.g. customer service). iMessage is better for these use cases because it feels more natural to the users texting the number

[trollbridge]

The only reason it feels more “natural” is because Apple prevents non-humans from being blue.

iMessage fully supports RCS.