I had to pick up my phone mid-dialog so I've hit escape, anwered the call and after I finished, I realized that the game didn't pause but I've missed all the voice acting and just had the subtiles to chose my answer. 'd guess escape was delibaretely disabled(maybe a design choice?) but sometimes real life is a priority
this is a particularly big problem during the philosopher scene and during the Pluto scene as their dialog is rather long, depending on the options you select

or am I missing something? but neitherless: hitting escape is somewhat of an unofficial standard to pause a game as it does outside of dialog so I think it should work in dialog too

+1 no pause in dialog is just bad. I can't even remember, what the last game was, that I couldn't pause.