Honestly, I don't think that it is that big of an issue. Every time I have gone for the key myself, I find maybe one or two other people going/guarding it. During peak hours there might be teams out after it but that's not an every time occurrence. In addiction to that, the teams normally don't surpass 5 people and if you plan on making the key spawn in more than the two current spots as discussed earlier, I feel as if that would actually be enough to get around the issue almost entirely.
