The dictionary defines a lectern as a tall stand with a sloping top used to hold a book for reading. It does not name a location in the definition.
But people do usually use the word lectern for the small stand off to one side. Just as they also use podium to designate the lectern. The podium is the raised platform speakers stand on in the front of the room.
Hate to quibble, but the surfboard is much larger than is required to hold a book in the optimal position for read and it is not tipped towards the orator.
I have not gone through the links to watch any video, but it sure seems to be the altar (although many Protestants have dispensed with the altar altogether since the idea of the Sacrifice of the Mass has been dispensed with altogether and the raised dais has become a stage in which the stars are the speakers and actors). Look at the posture of the speaker in the picture. Definitely an actor entertaining the people.