Was the Nastrond change requested on the japanese side? Because I can't ever recall anyone complaining about nastrond ever.

The Ten Chi Jin also makes little sens. Not moving for 3s every 2min wasn't such a big deal. If the issue was "unfortunate movement input throwing off the burst", well a compromise could have been done like making Ten Chi Jin a very tiny leyline. This way it would retain its identity while adressing minor issue. I've heard people talk about drifting controller making them unable to play the job. That's to me a very poor reason because this would imply all caster should stop being caster since you can't play them on a drifting controller.

The BLM change makes sens with the addition of Flare Star. You can be for or against but it clearly attempts to fix a problem about the new BLM rotation which is extensively complained about. But Ten Chi Jin and more especially, Nastrond? Can't ever recall a single forum post about those. (especially Nastrond)