Question: Is there a reason that `invalid-envvar-default` only checks `os.getenv`, not `os.environ.get`

is there a reason that [`invalid-envvar-default`](https://pylint.pycqa.org/en/latest/user_guide/messages/warning/invalid-envvar-default.html) only checks `os.getenv`, not `os.environ.get`?


https://github.com/pylint-dev/pylint/blob/68cb5b320653ad64c68ff48a4bb4ba449a01d3a6/pylint/checkers/stdlib.py#L33