It might seem that way, but that's not the case. She's facing nine felony counts and ten misdemeanors. Eight of the felony charges relate to voting one time in eight separate elections that took place over three years. Again the issue is that she used a fake address, and there's no suggestion that she voted more than once or was otherwise ineligible to vote. The other felony charge relates to tampering evidence to conceal that she had committed fraud.
Another ten less serious charges relate to being registered fraudulently - again at only one address -- but they count every election as a separate count, apparently. My guess is they charged her with both felony and misdemeanor counts for what is essentially the same offense in order to give them the opportunity to force a plea deal.
If this is as minor as you claim it is, I wonder why she would even be charged in the first place, considering how so many more serious cases of voting fraud and cheating go undetected and unprosecuted around the country.