I am an Ignition user and at first I got 6 months free Pro license and then they sent a "clarification" saying that Pro wasn't required to continue using Ignition after these 6 months. Ignition basically remained as it was - free (though they did butcher the communication about that).
You're a newer user, I believe. They gave 6 months after the Ignition users flipped out about having SEVEN days to upgrade their accounts. I've had Ignition for 3+ years.
It's been awhile, I could be misremembering things a bit.