I'm not sure. They seem to be implying if you glue the doors shut it can actually block LOS. Which confuses me because I thought drop pods had to open their doors. (and people just didn't want to paint the insides so counted them as see through)
I Noodlers, solemnly swear not to buy any new or used models until I have completed the following
Painted my Chaos Space Marines, Dark Angels, and Imperial Guard to a tournament standard