Bar none the easiest specific boss in SV, and possibly the top 5 easiest battles in the franchise, let alone amongst E4 members. Literally roflstomped her in all THREE of my gen9 playthroughs.
In the first run, she was the only one I used only one mon to defeat. Everyone else including all the early game ones had at least two mons there. I did use more than one mon in the second run but still very easy. And also used one mon in the third run and one shot everyone, no need for X items. Overall, she was the easiest opponent across all playthroughs.
Just saying, they should have just kept the whole choose the E4 order thing. Why they went back to the old fixed E4 order is beyond my understanding and the problem with the old order is that it just means the first member, and sometimes the first two, are just gonna be super easy because the player probably grindef to the champion's levels.
The woman from Pokemon Bank?