We no longer have regular official inhouses. Community members are still welcome to set up their own inhouses but we don't have a regular schedule anymore.
On dotafire, we dropped making inhouses because there weren't enough people interested. We needed 10 people who agreed to come to one specific server at one specific time and we just didn't have that. Is this the same problem here?
Essentially the same issue, yeah. Mostly issues with turnout and it just turned into more trouble than it was worth. There's not anything stopping people from making inhouses the exact same way as before, they just wouldn't be official / scheduled.
The Community Games subforum and the official Discord server would be the best places to set up an inhouse if you're interested in doing that.