How could you possibly read that as an insult to mustafur's intelligence when it was him telling me that I don't watch F1, when he doesn't know me at all, and I know that, whilst I didn't watch too much F1 in seasons before that, I did watch almost every important session in F1 in 2014...
All I am saying is one that can see with clarity can see why Redbull choose Kyvat over Vergne if they did watch all the Qualifying and Race footage.
There was countless times Kyvat was showing speed one wouldn't expect an STR to be even Capable of, this was the case at several circuits that I mentioned before(This suggests the talent is there).
You have to keep in mind Vergne was very unlikely to get much better then what he did because he was seasoned by that point and has had 3 full seasons producing nearly mirror image results in all 3, suggesting a plataeu in performance.
Where as Kyvat had Very little experience and had much higher highs but with the inevitable lower lows(Suggesting Talent is there but is still Raw).
But Redbull was forced to choose when Vettel left and it went with the driver that can Develop into a driver with Champion Potential then a driver that is merely a place holder at best.
That is why, Redbull did say that they wanted one more year of Kyvat at STR though but the situation forced his arrival early.
Also Vergne was never close to Ricciardo in Redbulls eyes, in Qualifying Ricciardo was Destroying him consistently in both seasons to the point they where almost on the opposite sides of the grid in many races.
Combining that with the fact back then Q3 required you to use an extra set of softs which hurt you in the race(this helped Vergne as he rarely made it to Q3) and the fact most of Vergnes big points come from opportunistic situations.
Pace wise there was no comparison, even in 2012 when Vergne scored much more points Redbull even said Ricciardo was the better driver that year.
When it comes to Sainz jnr vs Verstappen this will be the exact method Redbull will use to judge the drivers, they will care basically 0% about points scores and focus purely on who has the most pace when it's required.
Qualifying is one of the best measures of that as well.