And the Malinois should be, if needed, a tenacious and ardent defender of his master, vigilant and attentive. Sounds good to me so far. From this text, I can think of many working Malinois that fit these criteria. I'll look at a few select conformational details as they apply to function. Gotta have one of those.
Teeth are good too.
Now here's where some working people may differ from conformation folks. So a level bite is a little safer should the dog need to grip uncooperative or unruly stock. The level bite is not typically the preference in protection dogs for a simple reason. And a protection dog without teeth has a hard time doing his job. Yup, need those too.