I think that was definitely the impetus - I first read about the changes in this article back in April: https://www.theregister.com/2023/04/18/reddit_charging_ai_api/
The closing statement is interesting:
The spokesperson we talked to also wanted to make clear the Data API was still freely accessible for appropriate use cases through the Reddit developer platform; hopefully app developers and other small-scale operators won’t have any surprises ahead this summer.
I suspect they ran the numbers and started seeing dollar signs - they don’t care about the third-party apps (which don’t make them any money directly), they’re just trying to cash in on Microsoft etc.
I have a sneaking suspicion they’re going to end up back-pedalling, but it will be too little, too late.
Wake up about 15 minutes before I have to be out the door. Just enough time to go to the loo, brush my teeth and chuck some clothes on.
If I give myself more time than I need, I just get sidetracked by something and end up making myself late.