Like pretty much every major genre in the games industry, fighting games have their own little grouping that gives rise to these subgenres. This conversation has been going on for years if not decades. There are a lot of different perspectives on this topic, so your answer can very much depend on who you are talking to.
Platform Fighters have long been a source of controversy among Fighting Game fans. Not so much for their perceived quality but merely because some features fundamentally differ between traditional fighting games and platform fighters. We want to explore what is different about platform fighters and ultimately come to our own conclusion on the topic. But also explore the reasons why Platform fighters are separate from the Fighting Game genre.