I would go with this assumption. Best to assume neglect over mal intent. This behavior was seen before too with the devs behind the new Gmod in Source 2 (Alyx

I would go with this assumption. Best to assume neglect over mal intent. This behavior was seen before too with the devs behind the new Gmod in Source 2 (Alyx engine). They spent months trying to get in touch with access and it came down to an employee who ended up getting fired for neglecting responsibilities. Now everything seems to be working out and open tooling is being developed.