Could Ezra Have Saved Kanan?

After rescuing long-lost Force-warrior Ahsoka into the space-time continuum, Ezra is convinced he can save Kanan, but alas, has to let Kanan go or create a time paradox (it's also ambiguous whether the portal was real in the first place). ... He cannot reconstruct himself into a visually tangible form like a Force-ghost.

Why didn't Ezra save Kanan in the world between worlds?

Palpatine, famous for not lying about what the Force can do for people. There isn't really anything to suggest it can't be used because they barely even explained what it was. Ezra couldn't save Kanan from that point in time because that would kill everyone else.

Is Ezra stronger than Kanan?

In a fight, Ezra may defeat Kanan because of his bond with the Force. His Force sense and hyperspace abilities grant him a severe advantage as well. ... His lost sense of sight made him more reliable on the Force than perhaps any Jedi.