Interesting that the question assumes the pardon and acquittal make it not matter anymore. But the fake electors scheme matters for political accountability and historical record regardless of criminal consequences. Historians will care. Congress could care if they developed a spine. Voters *should* care about how close we came to a constitutional breakdown, even if Trump himself faces zero legal jeopardy now.
The scheme mattered because it was coordinated across multiple state parties, involved specific elected officials knowingly submitting fraudulent documents, and was clearly designed to exploit ambiguities in the Electoral Count Act. That it ultimately failed doesn't make it a cute footnote - it makes it a dry run. And now we've learned the system's vulnerabilities while the architect faces no consequences and faces voters again. That's a problem worth discussing independent of Trump's legal status.
The pardon is a political fact. The scheme's strategic and constitutional significance is a separate fact. Conflating them - treating the pardon as making everything null and void - is giving up on understanding what actually happened.