Perhaps the show is just too expensive. Roadside Picnic concept artist Alexey Andreyev told the Russian publication Meduza (posted by @amity006 )
[he] thinks that WGN America dropped out of production on a “Roadside Picnic” adaptation because of budget issues. “The show would have needed a lot of CGI, and so it would have been pretty expensive to make. Projects that require large investments have a harder time reaching audiences,” Andreyev explained.
Too bad AMC didn’t pick up. The leaked trailer on YouTube has also been deleted. There’re things beyond an actor’s control. The TV environment is so competitive now. I really hope Matthew will find a vehicle that will propel his career outside the period drama genre soon!