Question about the wiki

Hello everybody. I was going through the wiki section on fining agents again and I noticed something that doesn't seem quite right to me, so figured I'd ask here:

The wiki says to use two fining agents (if using fining agents) and it is best to pick one from rach column. Notice how bentonite and sparkolloid are in the same column, which indicates they should not be used together

When going down to see the information on each fining agents, it says bentonite is negative charged (attracts positively charged particulate) and sparkolloid is positively charged (attracts negatively charged particulates). This seems to indicate that spark and bent are complimentary and can be used together.

I personally do use both and have gotten great results. Can anyone help clear this up for me? The wiki information seems conflicting