You're missing context and/or didn't read OP's comment. He said "because". It will happen because that's the only way to reach profit. That's why it will happen.
Sure, they phrased it as "they will reach AGI," but that's clearly tongue-in-cheek...the underlying idea is "they better reach AGI, because that's the only way they could make money." So my comment ("necessary, not sufficient") was just pointing out that even if AGI is required for profitability, it doesn't mean they'll actually get there or succeed once they do, and that the original comment was perfectly compatible with the idea that not every business reaches profitability.
Yeah, that's what I was going for.