I don't really see how running around the map is any more fun then an exit burst. Specially running to a corner only to find 4 spawns because lolrng...
At least exit bursts were something to aim for. You had a strategy and you committed to it. Sometimes that strategy changed mid-game. You made decisions.(If you actually want to make the most out of everything)
I don't think exit bursts are good design, but I surely think they're more fun then what the game is without them. Is a burst really more fun if you have to move around to kill crap that spawns in random locations? Not really. You'll still just be spamming the same moves.