I wonder how much of this is intentional "incompetence" so they can justify the most recent campaign to build a regulatory moat against competition. The repeated refusals to disclose until caught certainly seem malicious, yet at the same time the boasting about their capabilities is also at an all time high.
It's not just these companies, but, trillions of direct/indirect investor dollars that are riding on them, "and only them", hoping they "only" win. Open-weight models threaten that investment. There's very high chance they can go to any extent to safeguard their investments.