Why is `anchor_point` reset for cell contents?

I was looking into a question someone in #help-with-circuitpython had about centering text, and noticed in this conditional, if the content has `anchor_point`, it's then reset to `(0,0)`.
https://github.com/adafruit/Adafruit_CircuitPython_DisplayIO_Layout/blob/e5e8b5a4fbd03701d38faf3a086ef82ffd330658/adafruit_displayio_layout/layouts/grid_layout.py#L155