Who says? Once again this is all speculation, it was never specifically said they were all dead. Not unless Vader kept a journal of every Jedi he dispatched. Also, Luke wasn't even a Jedi in EP4. Tarkin only mentions their fire has gone out, meaning the order doesn't stand for anything. Not that Force users are no more. Also, I find it odd that for a people to not have existed for 20 years. No one seems surprised in the Cantina when Ben busts out a Lightsaber. Or in ROTJ when Luke does. Especially since Fett has had first had dealings with Jedi. Yet no one's reaction is one of awe, disbelief, or shock that someone is using a Jedi weapon I never understood the absolutes that people felt they need to believe in regarding this, or a couple others. With Star Wars being so vague, it has always been just assumptions.in my opinion they have to get rid of ezra, they have to. luke was the last jedi alive after ep4
It's not like I want Ezra to live, I cannot stand the character. But i don't believe for one minute that Luke was the last or only Force user after the Purge. Or possibly even Jedi. I still feel Quinlan Vos could have avoided the Empire. If Obi-Wan and Yoda did, surely any of them could.