Those seem like fine requirements. Asking for much more is impractical or impossible. I can’t imagine trying to screen mod candidates with personality tests, or judging their political opinions, etc. Since mods are people they will all have their biases and flaws. Fortunately, Lemmy offers total freedom of choice: you can choose to avoid communities with mods you dislike, and find (or create) communities you do like.
As an aside, Lemmy needs more mods in general. There are plenty of communities with absentee mods, or a single mod who can’t realistically monitor their community all the time. I worry that under-moderated communities are ripe for abuse.