True, i put something between 100 - 200 hours into it and while they repeatedly add "special stuff" i cant really motivate myself to go back, exploring feels boring after some time and the pve is ok but not good enough to be a motivation in it self, but to be fair im also not the collector type of guy and there may be a dedicated fanbase who enjoys this.
On the other hand not every game has to life for ever and if the average player has 50-100 hour of fun and than never again touches the game than that is also totally fine.
"carbon footprint of the diet needed to fuel said travel"
This only works under the assumption that people would only eat as much as they need to, looking at the increasing overweight problems in developed countries this is clearly not the case, most people would have eaten that much annyway.