Did you find a work around for this?
I am also using WAVE to help create a WCAG compliant site and am getting the “Fieldset missing legend” alert.
I agree a higher level description is not necessary but is a fieldset needed?
Wave suggest removing the fieldset if grouping is not necessary “How to Fix It
If a higher level description is necessary for the user to understand the function or purpose of the controls within the fieldset, provide this description within the <legend>. If this description or grouping is not necessary, the fieldset should probably be removed. Note that the legend is repeated to screen reader users for each form control within the fieldset.”
