In the example you showed, what you are suggesting makes perfect sense.
As you asked for a decent source to validate your suggestion, I will quote the wise words of Stephen Few (he wrote some excellent books on data visualisation)
Edward R. Tufte introduced a concept in his 1983 classic The Visual Display of Quantitative Information that he calls the “data-ink ratio.” When quantitative data is displayed in printed form, some of the ink that appears on the page presents data, and some presents visual content that is not data.
He then applies it as a principle of design: “Maximize the data-ink ratio, within reason. Every bit of ink on a graphic requires a reason. And nearly always that reason should be that the ink presents new information.”
This principle applies perfectly to the design of dashboards, with one simple revision: because dashboards are always displayed on computer screens, I’ve
changed the work “ink” to “pixels.”
So in your design the only pixels which have any value are for the records which are tagged IS VIP. There is no need to tag the other records as NOT VIP because this is already implied.
This concept ties in with another quote about minimalism.
Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away” – Antoine de Saint-Exupery
So in your suggested design, taking away the NOT VIP crosses doesn't negatively effect the value attributed to IS VIP tick marks, so you are achieving perfection - there is nothing left for you to take away from the design without losing all the value of tagging things as IS VIP.