Agree that the technique is for retractables for the gyroscopic reason mentioned. There are many, more complex aircraft where the brakes apply automatically on retraction to stop the wheels turning so the dab on the brakes is not required. They also have brake inhibit to stop the wheels being locked on touchdown.
There is absolutely no problem with the wheels turning when you touchdown.
As an aside I know that there are a few pilots who found out the hard way that an A340 will not let the brakes on in flight when they pulled a circuit breaker during an engine test, the aircraft thought it was in flight and disabled the park brake and they found themselves impaled on a concrete wall.