My takeaway is that its not a penalty because Havertz "initiates" the contact by running past Wan-Bissaka, so its no penalty, but when José was running and happened to kick David Luiz's knee, it was Luiz who initiated the contact and so straight red. I know that was years ago and rules change and everything, but that red card still keeps me up at night occasionally
They should either let us hear it live like in rugby union, or have every VAR decision available after the game. At least we now know there was some kind of reasonably calm logic behind it, so maybe that will reduce the rabid conspiracy theories.
I still don't understand the subjective view Gillett has that Havertz sought out contact on his next step. PGMOL think that this is not re-reffing the game…