I can't find any evidence that they were allowed to flee. They organize "mass deportations" that were really just dumping them into the desert without food or water to die. Some did flee, just as some Jews fled Germany and occupied countries during WW2. If you've got a source for that I'd love to see it, neither Google nor ChatGPT seem to agree.
I don’t know why I’d dismiss it, I’m not a shill for the Ottoman Empire and am interested in history. Any documentation from a historical record? Contemporary news articles?
I couldn't easily find evidence that Armenians were explicitly allowed to escape, however it’s widely acknowledged that many were spared, especially those in Constantinople. Even the genocide deniers use this to argue against genocidal intent: "... certain groups of Armenians were spared, which proponents argue proves there was no systematic effort to exterminate the Armenian people." (https://en.wikipedia.org/wiki/Armenian_genocide_denial)
