Bitdefender Should ve it's own driver updater like many other top notch security solutions e.g. avast one . it's pretty hard to find each driver from it's parent website as other sources can not be considered as safe.
2. If bitdefender can offer a free secure browser as a part of bitdefender along with ad blocking and privacy protectors then it ll be great security , because users ll not ve to depend on many companies e.g. privacy badger , ublock origin , block webrtc etc. this browser should contain these basic features.
3- it should provide it's own download manager which should be substitute of internet download manager/Accelerator.
Anyhow the driver updater is the most necessary software from a reliable source like bitdefender.