No. This is not a Disco Elysium dev, and especially not a writer. Everyone who worked on Disco Elysium has left the studio by now as far as I know and ZA/UM is nothing but an empty husk trying to exploit the reputation and name of the genius of others.
That C4 trailer was completely shameless. "We brought you Disco Elysium"... No you fucking didn't. Now give the IP back to its creators you evil, soulless capitalistic pieces of trash. Fuck all the way off.