Earlier quoted context omitted.
Glushkov was never about packet switching, he had an idea to build new dedicated physical network for this project, he estimated that this project will need more resources than nuclear and space program combined (!). It was actually a waste of materials, resources and completely incompetent. And access to that network was planned as very secure, even the project itself was partly top secret. In real world, we in USSR…
Actually it appeared a little before 1991, in 1989. There was first Internet connection to Finland in Demos institute (their demos.su domain is still operational) and I can remember reading their Usenet posting about communist coup d'etat in 1991.
In 1991 they played with local TCP/IP in Moscow, in 1992 started to make dialup calls to Finland with SLIP instead of pure UUCP. Only in 1993 several permanent TCP/IP links from Russia (Demos, SOVAM Teleport, etc) to the West were finally established.