Short Answer: No! In fact, the opposite. The title is clickbaitSo I'm sure that this has been done numerous times before, but I wanted to give a lot of insight about how the rate of warlight game production has increased, and doing statistics on a game I've spent 2000+ Hours on is a lot more fun than reading The Great Gatsby.
https://imgur.com/a/IeL1VN4The first two million games don't really count, since it apparently took 4 years to get to that point so we will start our analysis here:
https://www.warzone.com/MultiPlayer?GameID=2000000This game was created on January 18th, 2012. The end game for this analysis is here:
https://www.warzone.com/MultiPlayer?GameID=17700000This game was created two days ago, on January 29th, 2019. That is an elapsed time of 2568 days (7 Years) for 16.7 Million games, or an average rate of 164 days for every 1 million games. The standard deviation of this sample is 31 days (About 20% of the mean).
In the chart it says the average is 162 days, this is because I multiplied the last 700k games by 10/7 so that it is calibrated to 1 million, and this data point that is already lower than the mean, multiplied by a constant greater than 1 would thus increase it's impact on the mean as opposed to just a straight Games/Days.
https://imgur.com/a/d7kvL9xHere is a pretty nice graph with a trendline that shows the increasing speed of game creation over the past 7 years.
I think that overall the reason many people seem to think the community is dying or Warzone is dying is because of the presence of Quickmatch which has destroyed things like Open Games and the Real-Time Ladder, which have a lot more interaction between players. I think that "The Community" will always be ~5% of active Warzone players, but Quickmatch and some other things have led to a decreased "feel" of a community.