Legends of Runeterra Countdown clock

(sorry if this is the wrong place to post this, couldn't find a specific LOR board.) I just started checking out the new game a few days ago, and honestly I've been hooked. However the last match I played something happened that genuinely made me mad. One round I had the attack token I played a card and then it was my opponents turn, however he didn't make a move until the countdown bar was almost empty. Now mind you it takes at least 60 seconds for this to happen, and is something I had never experienced in a game before. So I was pretty surprised when it became my turn and the countdown clock was still going with less then 5 seconds left, and I ended up loosing out on my turn and the round ending switching my opponent to the attacker. I don't know if this is a bug or an intended feature, but I don't see how anyone in their right mind would think that's a good feature.