Now i have to preface this by saying i'm in SEA region, where i suppose the playerbase isn't as large yet.
While hero labs was limited to 4 hours per day, queue times were kind of long but I could eventually still get a match. Ever since it became open all day I've been sitting in queue for ages and nothing, which probably has now become a death spiral for the mode as nobody wants to wait that long, people stop queuing for it altogether.
So I really think at least for the lower pop regions, as I heard someone from OCE having the same issue, it should revert to be open for a few hours per day just to get enough people queuing in that time.
While hero labs was limited to 4 hours per day, queue times were kind of long but I could eventually still get a match. Ever since it became open all day I've been sitting in queue for ages and nothing, which probably has now become a death spiral for the mode as nobody wants to wait that long, people stop queuing for it altogether.
So I really think at least for the lower pop regions, as I heard someone from OCE having the same issue, it should revert to be open for a few hours per day just to get enough people queuing in that time.