If all their users are threatening to switch to some AWS managed service because it is better for them, then perhaps the software should fall into disrepair and the developers should get other jobs. There isn't anything wrong with this, it happens all the time.

It's probably true that Amazon is able to accomplish this only through strong-arm tactics, but it also seems unfortunate that Redis Labs feels the need to resort to similar strong-arm tactics in retaliation. It doesn't invite anything besides more pressure from Amazon and companies like it. Nobody wins in this in this scenario, especially not the customers who now have no refuge because both competitive offerings are trying to rope them into participating in a turf war.