I called out the player we were originally talking about: Dele. You then asked about Kane and Lamela. I made it clear that, in my opinion, both went down as the result of clear contact and, though Kane's appeared soft, they are not comparable cases. Your trying to reverse engineer a similarity between these fouls and Dele's contactless dive leaves me stone cold.
So, to clarify: had Kane, Lamela, or any other player gone to ground sans contact, I'd have been equally disappointed. Similarly, had Lovren made contact with Dele, I'd have no problem with him going to ground, since I'd have been in no position from my armchair to judge how that contact might have affected him.