Whoever still defend Ronaldo, I would assume they did not watch the last 5 full games or more.
Ronaldo offered so little in the buildup , can't dribble one-on-one , can't hold up the balls , lose the pace to convert half-chance into on-target shoots or open chances into goals. These were all under the premise that he did not fully commit to front-end pressing or provide any defensive support. With all the energy he preserved, he could not offer full 90 mins of off-ball movements to seize chances , he often became invisible and exhausted after 70 mins .
He carries one and only job now , which is getting into space and scoring goals , and still he managed to score 0 in last 5 games, one penalty miss included. I don't see any way anyone could defend him anymore. Even his name changed to Welbeck, you would call these terrible performance, not to mention he is the highest paid player in the squad. BTW, Welbeck at Brighton offered much more in the games than Ronaldo, and he surely could score either one of the two header chances that Ronaldo missed today.
Honestly, he should cut all his scheduled interviews, nonsense shows with his girlfriend, underwear commercials , award ceremony, and etc. , just think about how he can offer more in his performance and improve, instead of taking for granted he would be in the starting 11 playing 90mins, or otherwise putting it up on his face .