I'm having a similar issue... I'm using bedrock.minehut.com as the IP address, and the correct Port when adding the Minehut Lobby to the server list... but I also get the cannot connect message.
On the list, the Minehut server currently has a 78 ping and 265 people in it... every time the status refreshes, the player count changes, but the current count is always 1 less than the max.