Hey, I've been using Photoshop, Illustrator, Freehand, AfterEffects since their 1.0 versions, and there is something all of them always have been doing: when we change a text block aligment (left, right, or centered), the block 'jumps' to half-x-axis of whatever new setting we choose.
I understand that must have been some limitation of legacy systems behavior (processing power, amount of resources, "it has always been like this"), but Figma and Sketch have showed us that such edit can be differently programmed.
So, please: keep the text block in place when we change the text alignment - in PS, Illustrator, InDesign and AfterEffects.