These are opportunistic hackers. They aren't state sponsored and may not even be in Russia. And they even state they only care about making money from companies that can't secure their systems.
Just so you know where I am coming from here, if you have ever paid a credit card bill in the United States it is probably about 90% likely that your payment has went through software I wrote. Truly higher than that since insurance and utilities also use it. I am a few classes from a Masters in Cyber Security and Information Assurance and have worked with auditors regarding Sarbanes-Oxley, HIPAA, and PCI. I work with InfoSec often on issues.
Darkside are well known as basically sellers of software that others use. The people who did this were paying Darkside for the use of those hacks. Darkside basically takes a cut of the ransom. At least $90 million had been paid to Darkside by various companies in crypto (mostly Bitcoin and from all over the world) which they then took their cut of and sent to the actual hackers. Russia may just be the exit point of their VPN or multiple proxy (although personally I think Darkside is in Russia, at least nominally). This isn't political at all, just good business. Colonial seems to not even have cared about InfoSec before the hack, thinking that a rudimentary firewall between billing and production would do the job. Colonial shut down the pipeline themselves after they paid the ransom, all because they were afraid the hack of their billing systems would mean they wouldn't get paid right for fuel delivered.