With few exceptions folding props induce more vibration into the system than rigid props. They are typically a little less efficient and can be prone to hub failures. Convenience and "cool" are not in and of themselves good reasons to introduce negative performance factors into an expensive aircraft. Reducing safety because we are lazy is also not a sensible thing to do.
Realistically, the best propeller we could have would bolt to the motor hub. It would be one piece, be made of carbon or wood and provide minimum flex. They would require a tool to be removed and installed. Unfortunately hobby manufacturers chose to provide quick detach drive systems in order to obtain an advertising point that buyers would jump on because it would save them a little time and work. Flight performance is less than it could be for that reason and many quick detach propellers have departed other manufacturer types in flight.
Many folding prop systems have experienced vibration issues that were not resolved until rigid props were installed, while others experienced failures at the folding mount. Some of the unresolved vibration problems a few H user have experienced can probably be traced back to the flexible prop design. Plastic composition can vary widely which in turn will impact rigidity. So be careful what you wish for, you just might someday get it.
