It seems clear to me that the combination of 100 signatures and allowing a small group of people—one or two people—to harvest the signatures necessary to get candidates onto the ballot is leading to ballots that are too long. I guess the choice you have is whether you legislate against that directly or you just hope it goes away. That's a serious choice about what you want to spend your legislative time on.
I will tell you that in my professional opinion, it's hard to sustain an argument that this behaviour is desirable for democracy. I don't think it's good that people are principally using the ballot for something other than putting up candidates in front of people. It's not a petition, and it's not a social media stunt. It's the presentation of people who want to represent other people in office and are willing to go out there and put their ideas to the test.
It offends me a little bit. Whether or not you should spend time legislating against it is another question, but I could certainly see why you would.