So in the end they are a conduit that has been hacked by nefarious actors providing connections for voting systems that are alleged to have been hacked by nefarious actors...
Possibly but Dominion voting machine DO NOT run Solarwind software. No one will know for sure until Solarwind's servers are examined but at this point it is just a coincidence. Solarwind provides their services to thousands of costumers worldwide including Governments, and a lot of Fortune 500 companies. From what I've read they are being looked at as the way hackers got into the US Government systems.