The sickbay did look pretty nice, considering. Rest of the ship not so much, but if they're going to cut corners, might as well do it there!
Well I can assure you that the children in the audience didn't care. :)

Yup. Better send them a fruit basket or something :) (I rather liked the way TIA/DotM was edging towards that--mysterious, clever, a bit dark.)
M-hm. Plus, the Doctor being... inaccessible. Just by focussing on the others.