i think show has established danny fireproof sufficiently. i also thought it was clear that the laza khaleesi did some prep work for the tent to catch fire - see how purposeful danny walked to centre podium and fact they connected (she was 16 and not keen on hanging out forever also never wanted to be khaleesi - stolen). don't dothraki oil their hair, they are walking molitovs. i also think it is designed to be repetitive. now she has large dragons, now she has unsullied, now she has free riders and sell swords. now she has dothraki. it is like a 2nd rebirth but this time with purpose. they are similar but different, i'm not sure she knew she would survive funeral pyre but had nothing to loose, this time she knew and it was well planned enough given it was pretty well on the spot with jorah dario and laza khaleesi.