Is this the rumoured GPT-5 reasoning engine that caused the famous OpenAI coup?

Rumour says OpenAI has developed an advanced reasoning engine based on this paper. This caused concerns by the board. You probably have read about it in the news: The board fired Sam Altman but 5 days later, Sam Altman fired the board.

Let's look into this paper together and you can comment: how concerning is this technique.

Paper link: https://arxiv.org/abs/2203.14465