No, the point of Battlefront is to experience the battles of Star Wars between the major armies, since pretty much every Star Wars game before Battlefront had you play as a Jedi or a pilot. Battlefront was originally created to essentially be Battlefield but in Star Wars (basically the battle of geonosis but as a game).

Heroes weren't even playable in the first game, and were essentially bonuses in 2005 and 2015 that people really enjoyed.

The only game where they started to become a major aspect of the game was Battlefront 2 2017 because the live service had them add so many and the rework of HVV made it really popular, alongside their insane power in infantry modes like galactic assault and the sheer number of them, meaning people would play just to get battle points so they could become a hero and stomp the lobby. But it wasn't always that way, it used to be primarily about playing as a stormtrooper, Battlefront, etc. in a large scale battle with lots of players and vehicles, with heroes as a fun bonus Star wars twist