I think having a picture of a spider on Arachnophobia is probably on the insensitive side I think there was a similar dustup with the clown phobia article whatever that one is called but to remove legitimately useful pictures from articles just because they might causes issues with or offend the sensibilities of someone is too much to ask We didnt buckle to demands to remove images from JyllandsPosten Muhammad cartoons controversy so theres no reason to give in to these other requests as well That being said both depth of field and focus stacking can be illustrated with nonphobiainducing images so replacing with other images that serve the same encyclopedic purpose is an easy public relations win in my book HTH