Yes Holliday originated the role and did a damn good job in it but she doesn't own it and no one owes her shit. No one person opened the doors for the rest of the world... if Nell Carter would have played Effie, we would still be here today. Jennifer Holliday got her Tony and her acknowledgement. And regardless of what she said before or after... her performance was an act of desperation. Only a desperate woman would be stuck on an abandoned building with as you say "40mph winds blowin down" her throat, singing the one and only song everyone knows you for... as she turned and looked at the red carpet from afar. I am sure Mary, Beyonce, Jill, even Whitney, or anyone artist would have rejected such a disgraceful offer.
And regardless if JHud does nothing more from this point on she will have a blockbuster film, countless film critic awards, a Golden Globe, and an Oscar for her shelf. And as our dear Clay Cane says she can go back to being Jennifer "Singing on Gay Cruises for Jesus" Hudson performing at punk functions hosted by The Lions Den here in Atlanta like she has done before Dreamgirls.... wait, maybe she should thank Holliday for paving that road too.