For once I am actually managing to get to a lower level!Hmm, as I understood, you seem to be right But I think that having no target on upper level is a very bad situation and avoiding an attack isn't going to help
... but a quick question that I could not find a direct answer on the forum: On the lower levels are many events that trigger an attack on a higher level. These cards also state "if no target available draw new event". Ok so far .... but should I discard the first event, or return it to the bottom of the event pile? The rules state that unless stated on the card, the event should be discarded, but this also feels like an 'attack avoidance' which causes the card to be placed on the bottom.
So in fact, you are discarding an attack to be out for the rest of the game but you are still closer to losing as you don't have an active character on an upper level. And still, it's usually better to have more cards in the level deck as to buy yourself more time before the final inception