He shouldn't but he is. In fact, results simply show that everyone is replaceable for them except him. Even last season when he got red card they lost all 3 games.
Like I said above after they lost Aguero before getting Haaland they won title with 93 points without recognizable striker. Jesus was there but often on the right or bench.
KDB in the season 18/19 in his prime played just 978 minutes of possible 3420 and they won title with 98 points.