Discussing themes of selflessness and sacrafice further, I understand that the fandom tends to negatively view the comparisons between the Jedi Order and Christianity negatively, but I do think there's some positives in those comparisons.
I see Christian themes in the self-sacrificial ways that specifically Kanan and Ezra act in the face of their own mortality and potential death.
In fact that same theme is seen in Jedi like Yoda and Luke as well. Even Obi-Wan (who we all jokingly call space Jesus).
They are willing to sacrafice their life because their higher power guides them to. They aren't forced to do so, and they know it will involve suffering, but they do it because it's the right thing to do and that's what they've been taught.
Even Ahsoka, who's famously not a Jedi, was willing to die with Anakin.
Kanan accepts that he'll potentially need to sacrafice himself, and Ezra does too. Ezra is upset by it and doesn't want to have to sacrafice himself, but he does. It's screams of Jesus in the Garden of Gethsemane.
I don't think comparing the Jedi to a selfless figure like Jesus is bad, or drawing parallels between the Order and Christianity is bad either. Rebels itself has always had heavy themes of the Abrahamic religions in it, and I think this is just another great example of it.
And I don't it's all just Christian. I think Star Wars in general is an accumulation of many religions. But Christian parallels between the Jedi Order and Christianity don't always have to be negative, especially when they're there.