This is not the first time flaws in the voting process has been a topic of discussion amongst those who might care about such things.
Dead voters, hanging chads, Diebold machines, Russian interference, and most recently Mail in voting, have been topics throughout many elections- and have called into question the legitimacy of the wins of candidates on both sides of the aisle- over a span of decades.
The biggest impediment to setting up something fair and secure has been the short attention span of the populace- we only think about these things right after the election, and right after an election the newly elected react the most defensively regarding the election process-for fear their wins will seem illegitimate. So they stick their fingers in their ears and scream "la la la I can't hear you" when the topic is being discussed, long enough for the next event that captures the publics' attention to occur.
Now would be an ideal time for the Democrats to take the initiative on establishing some safe, fair, secure, accessible, and uniform voting process for the Nation. Instead, it seems, they must insist the system is perfect, and that any calls to address the obvious problems with it is just an attempt to discredit their win.
A month ago I would have been shocked had someone said that getting into the Capitol while congress was in session required little more than breaking a window and walking down a hallway, now I know that the building was not quite as secure as I had assumed it was. Do we wish to wait until a foreign power actually changes the results of our election to make the election process more secure?
Biden could address a real problem, whilst simultaneously demonstrating confidence in the legitimacy of his own win, and a willingness to reach out to the loonies who need to be brought back to a level of reasonableness, by making "election reform" a centerpiece of his admin.