I don't see either those sections addressing what is in OP's picture.
(A) would involve the openings where conductors enter - that is good (from what we can see anyway) but if wasn't would need proper fittings or reducing fittings to resolve.
(B) would only apply if we had open wiring on insulators, messenger supported wiring methods or knob and tube wiring and only applies to how the wiring enters the cabinet.
The conductors are presumably properly entering the cabinet. There is no exposed live parts. Cabinets are allowed to have hinged doors, question is can these conductors otherwise be exposed when the door is opened?