Earlier quoted context omitted.
Facebook’s culture is “move fast and break things” the exact opposite of what you want from a utility used by billions every minute. Forgetting Facebook and insta for a second, WhatsApp really is the defacto phone and text service for many parts of the world: the taliban set up WhatsApp groups to manage things as they took over in Kabul. Putting a little more maturity into their SOP isn’t the worst thing.
>move fast and break things How often Facebook really breaks? I've had a much higher number of electricity blackouts and internet outages in the last decade than Facebook going down. Basically I don't even recall Facebook ever going down for that long, or breaking in any other way.
If you want to be taken serious as a messenger app, you need to align your corporate culture and processes to reflect that.