You focus on two numbers @jpmeijers considers unrealistic as well and ignore all the other data quoted.
There likely won’t be any corresponding up-/downlink numbers available because there is no way to get those numbers. TTN only showed cumulative numbers in V2 and only amounts for the current ‘session’ in V3. For V3 the duration of the session is not displayed so a session might be weeks or minutes.
A little searching for more information (it might be embedded in a larger discussion), there is a lot more but I don’t have the time right now to search for it:
Keep in mind that anyone deploying LoRaWAN nodes near the gateway (any LoRaWAN node, regardless of which target network) will impact your gateway traffic. At least one forum member ‘suffered’ from a deployment of hundreds of devices in buildings within gateway reach resulting in on average one LoRaWAN message a second. That quickly increases the traffic from a couple of MB a day to tens of MBs a day.