That picture with the red lighting does look ominous but in other lighting it is simply big expensive bad art. IMO bad art is a plague in the post Vatican II church. Maybe the Pope likes it. Maybe he hates it too but decided not to try to fight the battle to get rid of it. He may not have had a lot of say over it.
FYI: The pope does not control everything. There are career "Vaticanocrats" who control day to day machinery. The pope has to get em to do what he wants. As anybody who has spent time in a rectory knows, these folks to not walk in lock step.