I'm not sure being hesitant to accept claims without evidence is a mark against credibility.
I think stringing this out certainly has marketing advantages. But I think if they really had this kind of breakthrough they would be focusing on billion-dollar deals with manufacturers to ramp up capacity rather than internet hype marketing.
They haven't said a peep since CES over a month ago where they very quietly talked about their battery, no big fan fare. They seemed to be keeping a pretty low profile, it was all the YouTubers that started a huge hype train. That drove a lot of understandable skepticism, and now they're getting third party tests done to settle the question, no doubt because some investors got nervous about all the skepticism.
I think stringing this out certainly has marketing advantages. But I think if they really had this kind of breakthrough they would be focusing on billion-dollar deals with manufacturers to ramp up capacity rather than internet hype marketing.