Had a serious 1-hour convo with my friend, who's right?

So the situation's resolved and we got a conclusion, but was I wrong? Writing this 'cause I'm wondering if I overdid it.

The situation is in ranked games that match Bronze to Gold, A never chats. But B says you should use chat when needed.

Looking at today's game, A went ADC, B went jungle. A's support was Braum who got 4 kills. A (Nilah) was like 'we win if we just fight' but Braum kept hanging back. The guy was trying but played like a noob, so A was getting super pissed. But since A doesn't chat, A just vented to B on Discord. So B said to tell the Braum to walk forward and fight when he pings.

But A didn't chat until the game ended.

B got mad that A ignored him and watched the replay, talking shit.

A's opinion is that if they don't listen to pings, chat is useless anyway, and it's ridiculous to not hear pings.

B says chat was made for when the team doesn't listen to pings and opinions clash so the game is going wrong, so you should use it.

This is probably from playing about 26 games this season with things building up, that's why we talked for so long.

A says chatting is annoying and anyway people only listen when you curse at them, so he doesn't use it.

B says if they don't listen when you're nice, that's their problem, but not everyone is like that, so you should try talking to increase the chance of winning. A says he's felt for 5 years that chat is completely meaningless. B says he himself improved when he talked, so he suggests trying it. yeah.

A's peak is Platinum, B's peak is Gold.

I'd like you guys to tell me who's right along with your tier (but the conclusion is just that the team was bad, lol).

A's example of chat: 'You're so bad, listen to pings.'

B's example of chat: 'We win if we fight, so fight when I ping.'