Team representative Bradley Lord, who was part of the conversation, told BBC Sport Lambiase had apologised for the remarks “once I showed him the video [of the incident] he hadn’t seen”.
Mercedes said the comments against Antonelli marked a “1,100% increase in the abuse we sadly usually see on a Sunday of a race weekend”.
Anontelli’s channel is moderated, so he won’t have seen the messages.
Wolff said after the race that the comments were “brainless”.
“This is total, utter nonsense. That blows my mind even to hear that. We are fighting for P2 in the [constructors’] championship, which is important for us. Kimi is fighting for a potential P3 [race finish].
“How brainless can you be to even say something like this? It annoys me because I’m annoyed with the race itself, how it went.
“I’m annoyed with the mistake at the end. I’m annoyed with other mistakes, and then hearing such nonsense blows my mind.
“I spoke to GP [Lambiase]. I saw him and obviously he was emotional in that moment because they needed a P3, I guess, to help win the championship, now they need more.
“I said to him: ‘He just went off.’ He had a bit of a moment in the previous corner and then had less entry speed into that left-hander, put the gas down and at that moment, that can happen, then lost the position. So with GP, everything is clear. We cleared the air.
“He said he didn’t see the situation.
“I said to GP that there’s quite a social media storm. He said, ‘sorry if I caused that, I didn’t see the incident.'”