I wouldn't say it's as much of a VirusTotal issue as a fact that VirusTotal is not intended to be used that way. I found a blog post that explains it so I don't have to: https://www.remoteutilities.com/blog/is-virustotal-the-right-tool/ (side note, although I'm using a link here, please be very careful about clicking any links in the itch.io comment sections as a lot of malware-posting bots have been spamming links too)
If VirusTotal is reading a significant number of reports then I'll see if I can do something about it, otherwise it seems to be working as normal.