EditorConfig -- seems to not be used

[smartwatermelon]

I've placed an .editorconfig in my ~ homedir, with what I think are the options described as "closely resembl[ing] Google's shell style". But shfmt FILENAME doesn't seem to use the config file; it outputs the same results as I see with no options or config at all. When I do shfmt -d -I 2 -ci -bn FILENAME, I do get the expected results.
Has anyone else seen this, where shfmt doesn't find or use the config file?

I've attached the config file, renamed editorconfig.txt to comply with file attachment rules; I assure you it's named ~/.editorconfig on my system.
editorconfig.txt

[mvdan]

You're going to have to be more specific here. Can you give an example of a script file, including its filename, and how you ran shfmt with it?

[smartwatermelon]

⏚ [andrewrich:~/Downloads] $ shfmt simple_test_script.sh
#!/usr/bin/env bash

# Bad spacing and indentation
function hello() {
	echo "hello world"
}

if [[ -n "$1" ]]; then
	echo "You said: $1"
else
	echo "You said nothing"
fi

hello "$1"
⏚ [andrewrich:~/Downloads] $ shfmt -i 2 -ci -bn simple_test_script.sh
#!/usr/bin/env bash

# Bad spacing and indentation
function hello() {
  echo "hello world"
}

if [[ -n "$1" ]]; then
  echo "You said: $1"
else
  echo "You said nothing"
fi

hello "$1"
⏚ [andrewrich:~/Downloads] $ ls ~/.editorconfig
lrwxr-xr-x@ 1 andrewrich  staff    52B Jul 31 16:52 /Users/andrewrich/.editorconfig@ -> /Users/andrewrich/.config/editorconfig/.editorconfig

I also tried putting .editorconfig in the same directory as the script file; no change. I'm happy to learn and understand what I'm not doing correctly, if that's the case.
simple_test_script.sh.txt