You're not wrong, but we can see the current setup the devs came up with and I don't think they have either the time or skill to build a secure local server app.
The sad fact of the matter is that most IoT devices with publicly accessible web servers are feeding grounds for botnets within a few years after release.
Its very much sending video data to the cloud upon request.
Not sure it's deliberate clickbait, though. That speaks to intent.
The video also seems to confirm that content is in fact mirrored on the internet, which Eufy promised not to do. It also claims that Eufy chose to not do local-only processing for facial recognition for performance reasons, which is entirely valid were it not for the local-only promises.
The GDPR regulations do not necessarily apply to user content in the context of account deletion; content, which by the promises of the seller's website, should've never left the device in the first place. The 30 day limitation of deletion requests is not related to deleting files, it's merely the maximum response time for the company upon receiving a correction or deletion request. If the GDPR were involved at all, Amazon should be listed as a data processor in the privacy policy, which it isn't, so that would be illegal. Even still, "we legally have the right to keep your data even longer" is a dickish excuse for not quickly throwing out the access keys/encryption keys/data for deleted accounts/files.
The video completely glosses over the complete breach of trust Eufy committed by saying "some parts of the initial reporting are exaggerated". Eufy did in fact lie about the security of its product and they lied about how it works. This is a huge blemish on the good name of Anker.