It's a very hard thing to judge for me. They're not all clear cut cases.
It becomes a question of intent. Are they actually trying to go for the ball or are they just looking to cause the foul?
In the compilation of Kane's it looks fairly clear that he's doing it with intent. Kane is bigger than most of these players he's going under and could probably win the ball fairly in an aerial duel.
With Gomes on this one he has his eyes on the ball but Chris Wood is a monster Grock who would clean him out if he leaves the ground. Gomes isn't a striker or a defender and challenging aerial duels isn't one of his strong suits so he backs out of the challenge.
If you can show me a pattern of Gomes doing this like we've seen put together on Kane then I'd be inclined to agree with you that the intent to foul was there but at the moment I'm treating it as a one-off. When you see video of Kane doing this many times across a season it makes it look like he's clearly planned that he's going to do this and I don't see that from Gomes.
Which is why spurs fans like
@H.H. trying to point fingers at one-off incidents from other players doesn't exonerate Kane who clearly has a pattern of doing this and just makes them look like kopites.