Birch, Jungle, Acacia, Spruce and Dark Oak trapdoors act as a normal block

The following trapdoors in the title act as a normal block, meaning mobs will not fall down when they are being lured, however oak trapdoors still remain the same,

Here is 2 comparisons (though they are only screenshots) they may be hard to see:

Birch, Jungle, Acacia, Spruce and Dark Oak trapdoors of Enderman farm:

Enderman farm with oak trapdoors which it works: