I'm afraid I have no idea how to use gerrit 😓 I don't have any experience in developing extensions.

That's not how I read it. He brought up security and performance concerns, both of which have not even reached "good" let alone "perfect" as this task has gone on. (Besides, when talking about security, I'd hope for better than just "good enough".) I'm frustrated by the time lost in this task as well, and the fact that it looks like it'll be much more time before we see anything concrete, but it *is* important that the solution be secure and performant.