I've just unsubbed too because of this.
Stormblood overall has been disappointing to me. We lost dungeon development so SE could do something "never before seen" in an MMO. What I've actually seen happen is less content being developed for the game and instead more and more focus on the cash shop. Eureka was neat, but far from something "never before seen." I actually played the game it was based on for 8 years. I saw it for 8 years. For this we lose 30% of our new dungeons?
And then this companion app business. No. I'm done. I'm tired of paying a subscription to get less content and just more things to subscribe to.