No, they're not. They've been on the defensive ever since the allegations of vote manipulation first surfaced in these secondary media outlets.
And they ARE the primary entity being blamed for one aspect (the "vote switching") of the alleged fraud. I don't even know the name of any other company that sells voting machines and software other than Dominion, and that's only because I've seen their name dragged through the mud repeatedly in articles linked here on FR.
Of course they’re going on the offense. These are not countersuits as if people are bringing charges against them; they are practicing “lawfare” to silence people speaking out against the fraud and not just Dominion, bottom line.
By saying “seeing their name dragged through the mud” means you are emotionally invested in defending them. As it stands, Dominion ought to be indignant that their products were used for fraud and should be involved in discovery related to same.