A verse (sermon) should be based on whether enemies can hear you, not whether you can see them....so narratively LoS doesn't make a lick of sense for Dante.
Also, LoS is just clunky and broken AF (broken in the sense that it just doesn't work) as shown:
https://clips.twitch.tv/HomelyAggressiveWormPJSalt-XA21cwDUsYU4yVcd