That is a different sort of ripple. Your big electrolytic capacitors are used in the AC/DC conversion where the rectified sine wave is smoothed into a constant voltage.

  |                           |
  |  _   _   _         ===>>  |
  | / \ / \ / \ /             |--------------
  +V---V---V---V-             +---------------

The capacitors store energy during the peaks and return it during the troughs. The ripple is the current in and out of the capacitor which heats them and does "stuff-I-don't-understand" to their chemistry.

The article complains that some capacitors don't last their 4000 rated hours. But even if they do, 4000/24 is 167. All of your electrolytic capacitors are tiny time bombs.