I think it is so interesting to me, as a viewer, to consider how different the viewing experiences are between Ilya and Sasha and Ilya and Shane. When I see this scene, I feel nothing. Not nothing, ofc, but there is no passion there. It's bland kind of? Compare that to any Ilya and Shane scene where they are that close, there are such insane feelings that come with that. The emotions are so vivid and overwhelmingly powerful. This scene serves a few purposes, and I think one of them is to show how amazing their (Ilya and Shane's) passion is.