That's not proof, that's evidence. Most people don't use LFG sites and it's normal for this kind of thing to happen when any new AAA game comes out. There will be plenty who will come back after a week and every time there's an update. But to your point, evidence of what users? LFG users? People logged into the game at that moment? People logged in that day?

This was long before division came out and those numbers were everyday and I refreshed that site constantly numbers stayed in that area

Again, numbers of what? If it's just people who are logged into that LFG site, that still doesn't tell much, especially if you're only paying attention to them around the beta and launch dates of another big game. Most people never used any LFG site to begin with even dropping a few thousand logins it's a drop in the bucket compared to the whole population.