I've said this before: unless you are getting sales numbers from a reputable third-party (and when it comes to video games in the US, there is basically one company that actually has the data, and that is Circana), or unless it is reported in official financial documents like quarterly/annual reports, YOU SIMPLY DON'T KNOW HOW MANY UNITS A GAME HAS SOLD.
Statista, Steam (or SteamDB), VG Chartz, etc., these are all notoriously unreliable. People who track the video game industry for a living do not use these sources because they are untrustworthy. Nobody is going to know how many copies this game has sold until the nerds have started crunching the numbers from the various points-of-sale. A good rule of thumb, however, is that if the company (in this case EA) doesn't announce the number after the first few weeks, it is because the number is not great. It could be "fine" or "enough" but no company is going lead with their chin and report a low purchase rate.
The only thing you can do is wait. And read the user reviews and have a chuckle.