[lossolo]

No one believes it, so it won't strengthen your negotiating position. It's an unconfirmed rumour of unknown origin, and nobody is taking it seriously. And you're missing the historical context, which makes TSMC irrelevant to China's claims.

[Dylan16807]

Those are much better reasons. (Though I don't think the historical context cancels out a risk of losing TSMC. It just means the motivation wouldn't drop as much.)