Well yes, I'm commenting based on people suggesting SH could have been Selune's chosen or such. Obviously if she had been just simply a nobody who worshipped Selune, then it's not relevant. Although then I'd wonder why she was selected by Shar for such a big, special task.
And no, Selune is not "weaker" than Shar. Specifically in 5e, she's a greater deity equal to Shar.
