Calling a double spinning handplanting hook kick isn't impractical or ridiculous? The move is silly. The handplanting part makes the kick weaker and more telegraphed, and spinning twice is only something you can do if you're confident your opponent will not attack. To open a bout with that move is retarded because you've set no precedent as to how much respect your opponent has for your attack.
A regular spinning **** kick, (which is more powerful and safer than a handplanting one), is already a high risk move. Adding unnecessary movement to an already risky technique takes it into zany blooper reel territory.
Now Capoeira may not be as stupid as obviously fake martial arts, but so much of the art is composed of unnecessary and detrimental movement that it's difficult to see much practical value.
The hand plant does not make it any weaker, and if you are not having to worry about take downs, it makes safer as you head is about as far out of danger as you can get it and still kick the opponent. If you have worried about single legs, then yeah you might want to think twice about doing the hand plant.