Egwene's earlier dreams about opposing Rand (likely about the Seals), plus about him crushing the seals under foot. Of course there'll be twists, but it looks like Egwene will continue to oppose it, but Rand will do it anyway. Hopefully she pulls her head out of ... and falls in behind him.

It may or may not be the best choice of action, but if they can't stop him, then they should do their best of ensure it's a success.

As for why it could be a good idea - we know the reason LP and the other females opposed Lews Therin in the AOL, is not fear of the Taint (how could either side anticipate that?), but that incorrectly placed they'd not keep the DO bound, but smash the hole in the bore wide open. This didn't happen as the Seals were precisely placed. Has anyone considered though that once enough Seals are destroyed or stop working that you have the very imprecisely placed Seal feared by the women? That if they aren't cleared away they could result in the Bore being ripped open. I don't know if I agree with this proposition, but it's something that seems to be overlooked largely.

Egwene's dreams:

Rand confronting her, and the women with her, and one of them was a Seanchan.

Rand building a wall with him on one side and her on the other, her and Elayne and others she could not make out. "It has to be done," he was saying as he piled up stones. "I'll not let you stop me now."

Him walking toward a burning mountain, something crunching beneath his boots. She stirred and whimpered; the crunching things were the seals on the Dark One's prison, shattering with his every step. She knew it. She did not need to see them to know.