Indeed, as implied by the name.
“ Society for Worldwide Interbank Financial Telecommunication”
There will still be some facility to do it via China, but China's largest banks are also baulking (mostly because of the rapidly imploding value of the Ruble meaning they don't trust Russian banks to actually send the requisite funds than any great moral imperative I expect by the result is the same), and any Chinese services still willing to co-operate are going to extract a very, very hefty tithe from the Russians to enable it.
China would be keen on establishing and testing an alternative to SWIFT & CHIPS, the US stranglehold on financial systems, as they know the US would use it serve her geopolitical interests.
Looking at the number of countries sanctioned, there is no dearth of customers.
This reminds of Borg from Star Trek, more you use your weapons against them, faster they adapt.