Didn't say you said that
. You said Tesla frequently does things that way, I responded by saying 'but not stuff like this'.
I'm not sure why you're so sure Tesla hasn't had a mule or two out on the road with loads already. Just because someone on reddit parsed the sentence in an odd way, doesn't make them right ... Historically, Tesla has run mules. There is absolutely no reason they wouldn't have already tested hauling, with a mule, before press cameras would be around. That's just common sense.
(And I think most engineers would not use 'seat of their pants' to describe a fast iterative design cycle. That's terminology that usually means 'didn't perform proper diligence' and not associated with good engineering practice. Agile, yes. Seat of your pants? Nope.
As far as the charging extension cord, I'd call that something they probably put together for charging the mules, using it as a proof of principle, & will get around to a production version soon enough.
In the grand scheme of things it doesn't matter if they had a mule or if they just took a huge risk and hauled a large load for the very first time this week. I was just pointing out the (what seems to me, given Tesla history) the obvious. You and reddit are free to disagree. And we'll probably never know.
