I thought Keane was thrown out because he couldn't gel with the new younger squad which he also admitted recently, he was becoming increasingly toxic towards the squad due to this and he was also calling out Sir Alex's adopted son in Ronaldo.
On calling out teammates or speaking on issues, I think in this occasion it does need to be addressed as our current captain and also the club legend Ole recently called out a certain player and made to apologise.
That needs addressed ASAP, I think Ronaldo has done it in a very classy way while also not excluding himself from his own parameters of criticism, watch from about 5:12 onwards and you will hear it.
(Not just you Plump, this is a generality, only the first paragraph is a reply to you, the rest is in general towards Ronaldo calling out everyone)