I don't think it has anything to do with money. Rather about making the average user experience better. Blackhatters ruined instagram with fake likes. It's as simple as that. Fake likes and exchanged engagement is ridiculously common. That makes everyone who doesn't exchange and buy crap look/feel bad so they don't even post. IG quickly took it worldwide due to the positive response. People started to post more and the platform is turning more authentic.
Yeah as a brand it kind makes things more difficult for me but I like the change. It was getting way out of hand.
I have no idea what's going to happen with the influencers and brands who work together. Someone said the likes still show from browsers?
EDIT: lol no they don't. I can already imagine all the services and browser plug ins that are gonna pop up for this