I’m in no way a karateka (70-80s “white pajamas” boom in USSR somehow missed me), but I had a chance to train under one of our top sport karate coaches for some time. Superb specialist with typical for Soviet trainers scientific view on everything. So, in my opinion, katas are a must for a high lvl guys (black belt+), and are useless for beginners. Newbies need a lot of kihon, conditioning, flexibility and decent chunk of partner drilling. Only after the basics are drilled to death comes the upper lvl stuff - katas, etc. Otherwise, we either see only formal understanding and application as in sport karate or a sparring-centered approach as in KK. And truth lies somewhere in between. As you have said, karate is a MA, not a jap folk dancing. If ppl view it as such, it’s a good karate, if not - just another bullshitdo. No matter the visual attributes - gi’s, belts, terminology usage and so on.