Darth Bobby said:
Why didn't they show it in the live-stream?
Offscreen footage is up on YouTube so you should try and watch it before it's pulled by Disney, though it could just be a marketing thing because they joked about people not videoing it in the panel.
I actually watched the panel after seeing the leaked trailer and extended scene with Herzog - the other panels have been pretty terrible - but this had a sequence where they went through building a model ship and filming it in the old style with a motion control camera. Faverau looks like he's got this spot on... I can't see anything bad in it!
The Mandalorian even carries Boba Fett's weapon from the Holiday Special.