No it wouldn't ... if anything, the converse holds more true. Russia would probably get a huge beating if it fought JMSDF. The performance of Russia weapons systems were already on display for Armenia ... do you really think Russia would be in a much better position? Japan has an extremely formidable navy that was just until the past decade second only to the US in the Western Pacific. Meanwhile, the Russian Far East fleet has been in consistent decline since the late Soviet era, as is the case with most of the Russian military.