I do think I would like to find a partner, just to have someone in those last moments, but there is so much that could go wrong (as already has for those poor women) and obviously a site about suicide would draw some serious predators. I think if I was going to go for it I would make sure their account has a decent amount of history behind it, genuine interactions on posts and things that would make me more confident they were a real person, and then I'd follow general internet safety rules of meeting in a public place and gauging the vibes, and choosing a neutral location for the final deed so no one has the upper hand. I wouldn't ever go to someone's house alone, nor invite anyone to mine.
I do also think I would only meet other women/nb people, I know there are plenty of genuine men on here but I just wouldn't feel safe enough to go through with it.