Freed slaves reacted with joy, thanks, gratitude to God and celebration to the news of their freedom. They didn’t stick their fist to the sky.
And perhaps ironically, the slaves in New Orleans weren’t freed by the Emancipation Proclamation since the Union was in control of N.O. when the E.P. took effect.
You're right. Also because communication wasn't what it is today, some slaves didn't know about emancipation for several weeks after it happened. A great moment in our history with many thanks to Lincoln...