Okay, let me break that up in two
"For the use of gaming, VA is not the greatest option due to generally higher response time in comparison to other panel types; this slower response causes more motion blur, effectively eliminating its deployment for fast-moving titles."
Here he says that VA's are too slow for gaming.
And
"but they also have the worst response times of the monitor technologies covered here."
VA is faster than IPS, the only exception are the AHVA monitors which sacrificed colors in order to meet the spec for the gaming monitors, such as the XB270HU. IPS is not AHVA, and it's wrong to say that it is. So many things are wrong and there are way too much confusion and wrong information floating around, that obviously reading an article isn't going to help you decide what to get, since it's completely inaccurate the quotes listed above. Honestly, the fact that what I say isn't an article or backed up by sources, I never take BS and always go with experience and facts and not opinions similar to those in articles where apparently the whole word VA means slow response times, what a bad joke.
This made me laugh
"IPS panels are especially useful for those not wanting to play too competitively, but want a beautiful/immersive visual experience. PLS and AHVA are similar enough to IPS to usually not be differentiated."
Honestly, do whatever you feel like buying OP, you won't find reliable information in an article it seems. Try a monitor in a store, and make sure it's in Theater/Movie/Cinema mode so that no weird store mode is on, then make up your mind and buy it.