It seems that has been the trend lately... To me it started with reissue Skeletor (My order went MIA so I had to call DR for a replacement.) I had to repaint him cause some purple was missing on him.
-BA Skeletor had a huge splotch of black missing on his armor. Also I had to sand off the inside of his "belt" cause it sticks to him for some reason.
-One of my Santa KGs had a silver splotch in his arm (Luckily I had bought one to make a 200X He-Man, so Splotchy became my 200X he-man)
-HH was flaking off badly, so I killed the vac metal and repainted him...
- Buzz-off had some splotchy areas on his head and arms. Capt. Paintbrush had to strike back.
-Marlena had a little something that I had to scratch off from her crown.
-One of Optikk's eyes (Green) had to be repainted.
-Bow needed to have his rope repainted.
-All the Skeletor Heads: Slight yellow drybrush to kill off a bit of the excessive Green color on them... (In BASkeletor's case to eliminate the Vintage Toy paintjob and make him similar to the other Skeletors)
These have been the ones have repainted for some issue or other... not specifically to make a custom... (Like Whiplash, which had a perfect paintjob if I was into vintage Whiplash) or my MAA who was repainted with a filmationlike stache.
While Santa KG and HH ended up being made into customized figures, the paint issue (or vac Metal in HH's case would've driven me to repaint even if I wasn't interested into making customs with them.)