You are literally correct, but not engaging in the point. Meta shares in Scale are explicitly non-voting shares. Influence/control post minority investment matters as to whether the deal can be reviewed via Clayton Act. Meta did everything they could to avoid regulatory review with this transaction, and it worked.
This post doesn't quite comprehend why Meta made a 49% investment instead of an acquisition.
The path Meta chose avoided global regulatory review. FTC, DOJ, etc and their international counterparts could have chosen to review and block an outright acquisition. They have no authority to review a minority investment.
Scale shareholders received a comparable financial outcome to an acquisition, and also avoided the regulatory uncertainty that comes with govt review.
It was win/win, and there's a chance for the residual Scale company to continue to build a successful business, further rewarding shareholders (of which Meta is now the largest), which is just like wildcard upside and was never the point of the original deal.
But at this time Dario was at OpenAI and was a co-author on the GPT-2 research paper announcing the model.
The "too dangerous to release" approach has been him the whole time, at both companies.