The delay in battle net is an ancient relic which was an acceptable feature back in the early 2000’s when the average internet user used a 56k dial up modem.
As time progressed in WC3 people moved away from the battle net platform to get away from this issue as it is still solely tied to using official battle net
This is 2018 with the game scheduled to be released in 2019 and is no longer an issue, please remove this feature.
Not just for Reforged, remove it entirely for both versions of the game.
There is absolutely no need to have the inbuilt delay anymore and will be a massive improvement to game quality.