i think thats maybe part of it. Part of it is maybe they truly went too fast which caused the incidents. They hype it up but i don't see this different as any other industry. One could build a house too fast and then scream "houses are dangerous" when it inevetiably catches on fire from negligent practices.
i think it could be both. They seemed overly excited to brag about it. But also if you have thousands of agents making their own sandboxes something will go wrong