The Russians have been concerned about scientology and other offshoots and cults. Mainstream denominations such as Lutherans are encouraged.
I think that this, if true, would continue is naive.
"Following a wave of Russian nationalist propaganda, the laws passed almost unanimously in the Duma, the upper house, on Friday and in the Federation Council, the lower house, today.
Proposed by United Russia party lawmaker Irina Yarovaya, the law appears to target religious groups outside the Russian Orthodox church. Because it defines missionary activities as religious practices to spread a faith beyond its members, “if that is interpreted as the Moscow Patriarchate is likely to, it will mean the Orthodox Church can go after ethnic Russians but that no other church will be allowed to,” according to Frank Goble, an expert on religious and ethnic issues in the region."
"Russia has already moved to contain foreign missionaries. The “foreign agent” law, adopted in 2012, requires groups from abroad to file detailed paperwork and be subject to government audits and raids. Since then, the NGO sector has shrunk by a third, according to government statistics.
“In Moscow, we shared an office with 24 organizations. Not a single foreign expatriate mission is there now,” Rakhuba previously told CT. “They could not re-register. Missionaries could not return to Russia because they could not renew their visas." It is next to impossible to get registration as a foreign organization today.”
"This week, Russia’s Protestant minority—estimated around 1 percent of the population—prayed, fasted, and sent petitions to President Vladimir Putin, who will have to approve the measures before they become official." - http://www.christianitytoday.com/gleanings/2016/june/no-evangelizing-outside-of-church-russia-proposes.html