Not true. It is by far not "only" Afterburner as you wrongly claim. NVIDIA's official NvAPI_GPU_GetThermalSettings API is broken in this driver, which affects thermal monitoring in all tools using it (which includes OS task manager, PresentMon and every single hardware vendor's specific software like ASUS GPU tweak, EVGA Precision X1 or MSI AB).
NVIDIA also has undocumented private thermal monitoring API, NvAPI_GPU_ThermChannelGetInfo (which includes hotspot and VRAM monitoring interface), which still works in this driver and which can be optionally used by GPUZ or HwInfo, but ironically it is reverse engineered unoffficial fuctionality and NVIDIA doesn't allow partner's software to rely on it (that's exactly why you never see VRAM temperature in any partner's software, but can see it in independent ISV's products like HwInfo).
Also, stuck thermal sensor is just a part of problem. When the sensor is stuck in this driver, it also blocks driver's thermal GPU boost V/F curve adjustment. So GPU starts boosting much higher than before (due to not seeing temperature increase). So it bumps performance but may negatively affect stability of some PCs.