SaturnV; BOAC;
The Tim Vasquez radar simulation image unfortunately had incorrect position information plotted on it.
An enlarged portion with the ORARO and TASIL waypoints added, along with a scale, some timings and the 0210 upset position is shown below. As BOAC has already suggested, the crew appear to have been "threading the needle", and reference was made to the turbulence experienced passing ORARO.
You can argue over the simulated paint colours, but the picture of what was happening should be pretty clear. In my opinion, they were not in "severe turbulence" - more like "light chop" with the occasional "bump".