The concerns could be real but these AI CEOs are simply trying to capture the mindshare of the solution IMHO.
Any other time sure, but not in this window. The IPO window for them is fragile.
METR is a perfect play to allow these AI corps to fund a lobby and position it as the authority of AI safety that's completely dependent on the success of these AI companies.
IPO will come but dependence is the real goal here. That's always been the VC playbook.