I imagine the NASA conference tomorrow may give more clarity, e.g. perhaps today's announcement was a last-minute press op that wasn't sufficiently planned? Maybe the full NASA briefing will be better.
With that said, I think it's fair to keep this discussion separate so as not to overshadow the very real and tremendous accomplishment we're witnessing today. Obviously the manner of the announcement is insignificant compared to the result itself, and I hope everyone involved is very rightly proud.
Not really, I'd argue it's just as important.
Without solid PR for current projects, future projects get less funding.
Ever wonder why lots of people don't give a hoot about science funding? This is why, you promise them something important and exceptional and then deliver a low quality product. Again, I refer to the streaming event, not the telescope/science team.