General

Are you saying the majority of the team work at their day jobs on Sundays? I mean, I've worked a lot of weird schedules before in my life, but I find the odds of that rather unlikely considering how many cultures consider Sunday a day of rest. In fact, a little research into French labor laws lowers the odds even further.
Naturally. That is how code works.

But it's not entirely coding; you need a goal to code towards. Part of the reason for dialog is to find a middle ground between what the design team wants and what the code team says is possible. There's some game design elements, and you don't need to be a code monkey to have ideas about game design. Ideas some may want to discuss in real-time with those that may be able to refine and/or implement those ideas but can't.
I will give you the benefit of a doubt, but how that came across was that you are saying that anyone who can't even read most of the lore because it is in a language we can't read and has not been translated cannot help and thus need not be considered.

Think about the implications of that. Think how nationalistic that sounds, and ask yourself it that is the image you want to continue to project. (I say "continue to" because I am far from the only one who thinks that.) Then ask yourself how much has happened over the last 7 years to make people like me have the views that we do. Think long and hard. And while you're thinking, read my sig-block a few times and realize that I am speaking for more people than just myself.
I am not saying there is outright malice. In fact, I doubt there is any ill intent. But a lot of folks who never experience racism deny it even exists because they were never on the receiving end. They don't realize their privilege, or the damage they do by perpetuating bad behavior.

Do you see how, "Only homins who know very very well Atys can help.", is insulting? Whether you see it or not does not change the fact that it is. And continuing to have the meetings at a time that excludes those that already feel insulted is just rubbing salt in the wound. If that is not the intent, then lets work towards a compromise that makes it feel like Ryzom is more of a global game by admitting that the EU is not the only place that has good ideas, coding skill, or opinions that matter.
Honestly, a great compromise. If moving the meetings to a day that most people on both sides of the Atlantic have off isn't practical, then multiple meetings would work.(I still wonder what it is about Sunday evenings in the EU that's more important than the ability to pay rent or eat is for us that makes moving the meetings impossible, but c'est la vie :/) My only worry there is that enough damage has been done over the course of a number of years that a lot of NA folks won't even bother since they've been so conditioned to being ignored. I would love to be proven wrong on that though.