I really like the band's playing; they nail it. The vocalist should jump off a bridge though. I'm not saying that because I don't like growly vocals, but because Ronnie Van Zandt's performance in the original is top shelf, and this is not.
There are songs that the vocalist's role carries, and most Skynyrd songs belong in that category.
Lmaooooooo jump off a bridge..to be honest I've never listened to the Skynyrd version, I just rediscovered Weedeater after not listening to them in years and I love them and really like this song. I might have the same opinion as you, though, had I heard the original. I'll give it a listen. Dixie (the singer) was a hot mess, not sure how he is now. Used to have a bottle of Whiskey on stage and a bottle of cough syrup taped to his speaker. If you're interested here's an interview with him that's equal parts scummy and endearing