I have noticed this with all Hatches and vanilla Dreckos.
Doors located adjacent to 1 tile-wide holes/gaps in flooring are able to be passed through by critters when the door is in use, even if the door is set to Auto. This works with both pneumatic doors and manual airlocks, although I haven't tested mechanized airlock.
In this same vein, Hatches seem to be able to burrow in the two tiles that the door occupies.
Steps to Reproduce
1. Door located adjacent to a 1 tile-wide hole/gap in flooring, set to 'Auto' 2. Critters that can attempt to pass between the two sections 3. Duplicant moves from one section to the other, opening and shutting the door In this time a hatch or drecko can move from one side of the door to the other. This is displayed in the attached file.
This issue has not been confirmed by a developer yet.