There's less confidence in the electoral system because people tried to erode confidence in it, not because of the way the election was administered
No 'blue-ribbon' plan could have gotten us out of the mess we found ourselves in https://twitter.com/senrobportman/status/1348344636872548352?s=20

Go through that call between Trump and GA SOS, and think about how many of his assertions would be fixed by, say, a ban on mail absentee voting and a strict photo identification requirement
The answer is: not much of it

You can still assert that someone shredded ballots, or pulled a box from under a table, or that someone wasn't watching, or that there were 'dead' voters based on a file match, or that there isn't a perfect match with poll books, or lie that there are 'more votes than people' etc

Now, that doesn't mean there isn't plenty of room to improve the electoral system. And there's also room for agreement or compromise on many issues, if people thought about it in good faith.
But the core challenging facing the electoral system is bad faith, not bad election law