I think that there's a certain deeper truth in what you've posted, which is that hiring is very hard, and different people feel different ways about different things. I also applied to Google once upon a time, and it was spectacularly confusing and bad. Yeah, I could speak to humans, but that wasn't particularly helpful. I regularly received contradictory information, and the stalling and back and forth went on so long I completed several other processes during the wait, and ended up at Cloudflare instead. That doesn't mean that you're wrong that you had a better time than I did, it just is what it is.
I know you're not looking, but to give you my take on the biggest question here, in case anyone else is curious:
> If I reapply, should it be with the same interview packet, or should I rethink it?
In general, resubmitting with the same materials isn't a good idea. If they didn't get you in the first time, they won't the next time, and also in general, time has passed, you've probably done other things since then... naturally, this means the answers will end up differently.