seekingalpha.com - Reverts back to normal when enabling reader mode

Does not stay on reader mode when enabled, it reverts back to normal.

Steps to reproduce:

1. Go to https://seekingalpha.com/news/4640742-archer-aviation-completes-piloted-round-trip-between-salinas-and-hollister-airports
2. Enable reader mode.

Reproduced on both Release and Nightly on Android 14 (Pixel 5).

Moved from: https://github.com/webcompat/web-bugs/issues/234310