Confused on Messaging service limits

I’ve used messaging service before but earlier, took a look at its limits and I’m a bit confused because it seems you can send more messages per server than you can receive? These are the limits
Messages sent per game server =150 + 60 * (number of players in this game server) per minute
Messages received for entire game = (100 + 50 * number of servers) per minute

Let’s say I had 10 servers and 10 players each. Each server can send out at least 600 messages per minute while I can only receive 50 messages per server and that little 100 extra among the servers. Can someone tell me if this is intentional? Am I missing something? thanks for any answers.