Exactly my problem as well. I’m only at level 4257 and many years invested and this change will cause me to stop playing due to comfort and inconvenience.
let us decide what mode we want. The case I use holds my ipad in place for me in landscape mode. Frees up my hands. Can’t do that in portrait mode. Change it back. Change it back. Change it back. Been playing for over 10 years. Hate to stop now. But I cannot play in this mode.