I understand the point being made, because Shinigami Eyes does brand itself as an "anti-transphobia" tool rather than an anti-transmisogyny tool, but I don't actually think reviewbombing and trying to convince the devs to take issues that face non-white non-perisex non-trans women seriously is going to do anything. Shinigami Eyes is a tool that only works for those and on those with public platforms. When it's being used against other marginalised people, it just becomes a purity test of whether or not a sufficiently public trans woman approves of your statements.
I think if people really want Shinigami Eyes to be better, they should fork it and write up actual rules rather than telling people to go with a vibe of whether or not someone thinks a trans woman is a man in a dress. All the code is on Github and I've entertained the idea of forking it in the past for personal use, but I also think that the crowdsourcing method for using a tool like this is always going to limit its functionality and it's effectiveness.
I don't actually think trying to convince someone that they're capable of hurting other people is worth the effort ever. Otherwise we wouldn't have to keep having the conversation about white feminist victim complex literally any time someone says that women are capable of being bad sometimes.