Hello,
To be clear,
You want a system that forces players out of whatever they are currently doing,
Takes away their free will,
And requires them to do a system they may or may not be interested in doing?
Just so that I understand the nature of your request.
Thanks!

I am not being a terrorist, I am simply asking for clarification on the nature of the desired request and suggestion.

Here is the issue with your current proposed suggestion. You propose a 60 second window where players are required to click away a popup or be teleported into great ninja war, but this assumes that they are not actively engaged in a system that would not be prohibited by this. Off the top of my head, they could be doing treasure maps and not find a fight in that time, or doing wanted missions and not find a fight in that time, or could be engaged in any number of things and just have stepped away from the computer for 60 seconds, which is a remarkably short time. They could even just be running between zones to do something, or be pausing between arena matches during that period and have gone to the restroom. Or they could be synthesizing equipment or magatamas and look away to have a conversation for 60 seconds, then turn back and find themselves literally in great ninja war. Etc.

My point stands that this system would be forcing players to do something potentially against their will. If these players wanted to do great ninja war they would most likely be doing great ninja war, I suspect. The reason I asked for clarification was so that the original poster could clarify how their proposed system would work around this problem and issue, which is a problem and issue, not to "be a terrorist." At present, this idea does not seem tenable unless you can propose a way around potentially making players upset about this.

Well with any suggestion like this, that is, something that is a complete from-the-ground-up build, it's better to have a fully-fleshed out idea to present than just a single bare-bones tagline. If I present this to the devs as the latter, it will almost certainly be discarded. If you can work out a way for this to function feasibly in the game, then when I send it in it will be taken much more seriously. That's generally true for any concept being presented.

But judging from your second post, are you no longer interested in pursuing this idea?

This is a very good idea. If this were a permanent account setting with a toggle, similar to the team invite toggle, this takes the free will issue out of the equation. I can submit this idea to the devs under this proposal. Would you like me to do so, <∞>, or do you have any further modifications you'd like to make before I submit the suggestion?