You act like this was some major dilemma for her.
As if Eternal haven't been on the verge of doing a reunion for about 20 years and always not gone ahead due to "schedule clashes" or "creative differences" or whatever.
The number of people who would have said, "But WHY isn't Louise Redknapp performing at Pride events?!" is zero.
And of course she could still perform at them as a solo artist.
Literally no need for her to badmouth her former bandmates.