What does it mean: "The gradio example in this repo does not include tiled upscaling scripts."?

[moonryul]

I read the following comments on this github repo readme:

Gallery of ControlNet Tile

Note: Our official support for tiled image upscaling is A1111-only. The gradio example in this repo does not include tiled upscaling scripts. Please use the A1111 extension to perform tiled upscaling (with other tiling scripts like Ultimate SD Upscale or Tiled Diffusion/VAE).

=> This description is confusing me.

Q1: Do gradio_tile.py and "controlnet" with control type "Tile/Blur" perform DIFFERENT things? I know the latter is in the format of A1111 extension. But other than that, in what ways are they different?

Q2. Does it mean that "controlnet" with control type "Tile/Blur" (without selecting Ultimate SD Upscale or Tiled Diffusion/VAE)
DOES NOT performed tiled upscaling?
moon