Oda likes Sanji to much to ruin him like that. Only characters like Chopper get ruined like that. RS quite literally ruins the way of fighting Zeff taught Sanji. Sanji is a martial artist and not a power ranger.
I've watched Power Rangers during my entire childhood. And they usually use kicks and punches.
In fact, during the first season, most of them were martial artists.
Let's remember that Oda is not a mad genius or anything. There isn't a "fight style" besides some generic definition of "this guy uses kicks".
Wtf is "Okama kempo", for example, besides a generic fighting style that, guess what, is used by Okamas?
Do you think "Santoryuu" is a fighting style? It's literally just "using 3 swords". It's Oda's way of making the character quirky and unique. Zoro had no problem in simply copying Kinemon's technique. Zoro has no problem in using any amount of swords, etc.
There isn't a "style".
It's not like Hajime no Ippo where you have "infighters", outboxers, people that focus on defense to hit counters, or to dodge to hit counters, or that simply punch their way through an opponents defense, right-handed vs southpaws, etc. One Piece has NONE of these kinds of nuances.
Sanji uses the Raid Suit and IMMEDIATELY incorporates it's gimmicks to his fighting "style". How da fuck do we say almost 100 chapters later "it ruins his fighting style"?
You don't like the suit because you think he looks more stylish without it. That's it. There's nothing wrong with thinking that, but at least let's keep it honest instead of coming up with random reasons like Oda is a sports mangaka all of a sudden.