So a few things, what you define as convenient and what I define as convenient is going to differ, so let’s just talk about the facts, there were both gender neutral bathrooms, and segregated bathrooms at the World competition. I found segregated bathrooms about a 10 second walk away from the GN bathrooms with no lines, the only difference being that the segregated bathrooms where further from the entrance. Had these people continued walking, they would have found a segregated bathroom.
You are right, I do not know how those people identify themselves, so from now on I will use female/male presenting persons. However, please do not let this detract from the point that a group of people were taking advantage of a resource that was not meant for them. If it was meant for them then they would be using it as it was intended.
I understand your point about GN bathrooms being safe for everyone, and in a perfect world they would. However, they are specifically there for trans and non binary people to feel safe while using the bathroom, and that needs to be respected and honored as the intended purpose. If non-cisgender people felt safe and comfortable in segregated restrooms then there wouldn’t be GN bathrooms in the first place.
To your point about using the GN bathroom, yes it would be beneficial if you were using it as intended. Especially if it is a multiple stall bathroom like the ones at Worlds, you using the GN bathroom as a GN would encourage others to use it as its intended purpose as well. However, if it is a single stall bathroom, or a one person bathroom that has been designated as GN and there are other segregated bathrooms available for you to use, use the other bathrooms and keep the single stall GN bathroom free for non-cis folks.
The overall issue here is that the GN bathroom was being used as a normally segregated bathroom, all male presenting persons went into the men’s room, and all the female presenting persons went into the women’s room. For it to be a truly GN bathroom all persons would have been using either bathroom and there would be a mix of genders in both. Had this been the case, I would have had no issue, but because they used it as a normal bathroom now a non binary person would have the same experience using it as they would in a segregated bathroom, which defeats the purpose of having a GN bathroom.
Be careful when you say bathroom availability, remember we were in a three story convention center with multiple bathrooms on each floor. From my personal experience I only saw one GN bathroom, and several segregated bathrooms. So there were several bathrooms that could be used, and in my experience when I saw this incident there was only a line at the GN bathrooms, the segregated bathrooms on the same floor, within a very short walking distance away had no line.