A quote-unquote "pure point guard" was the dominant PG archetype for decades in the NBA. A pure point guard or traditional point guard looks to pass before shooting and only shoots when necessary. John Stockton, Steve Nash, Rajon Rondo, and Jason Kidd fit this bill.
The Heat haven't had many traditional floor generals leading the team. 90s Heat guard Tim Hardaway was one of the first score-first point guards. Mario Chalmers was the technical PG during the Heatles era, but he was more of a spot-up shooter than lead ball handler, and Goran Dragic was another score-first assassin.
Kyle Lowry was the last pure point guard the Heat had at the helm. Say what you must about Lowry, but no one can deny that the Lowry era was successful. After snagging the number 1 seed in the East, making the Eastern Conference Finals in 2022, and making an improbable Finals run in 2023, there was no denying that old-school swing-the-rock-first traditional point guard play was key in Miami's run.
While these types of point guards are hard to find these days (most guards, in general, think score first today), the Heat had an opportunity to grab two pure point guards this offseason—but the Phoenix Suns beat them to it.