Other things from the end of the season:
1) Love Maul obliquely referencing the Sith code -- which comes up quite often in SWTOR -- when pushing Ezra to use his emotions.
2) Ezra says "I'm not afraid of you." -- to which Vader replies "Then you will die braver than most." Heh.
3) Ahsoka shows that she's enough of a match for Vader that the fight could have gone either way.
4) Ahsoka lived.
Actually, we know she didn't win the fight as Vader is still alive and kicking for the movies. So, at best she fought him to a draw long enough that she then found a way to escape.
Ah, but I did not say that she did win, or that she might have won but we don't know... I said that she was good enough that she was capable of winning that fight based on what we saw. (That we know she didn't win because it's an intermingled timeline is a somewhat different and more "meta" discussion.)