I understand you may be perturbed or frustrated. Read below and understand the perspectives and glint off it.
Like when I first started, mauler was featured in as the hero in PVP. I do not have him. Which was no participation from myself and a lot of others too. No lost there. I just participate in normal free to play PVP. Though may lack in rewards but still allow me game play nonetheless.
You have to realise the devs could not possibly cater to everyone, right ? Not sure if you are aware this game had its worldwide launch some 190days back. Beta was even earlier, we have some beta players with 300plus days account. A lot has progressed since than.
Hence some events would eventually exclude some parties due to certain lack of hero etc. The other thought is the devs way to drive revenue where it encourage players to up their VIP level so that they can do more gauntlet etc.
There are multiple platforms that devs put across their information to us. Discord, Forum or in game, but most times in game people tend not to check upcoming events in game. At the end of the day it’s the team leader and officer job to update everyone. That said, a simple tweak in habit would make the difference.
Frankly, the calendar map was up since 1st August. Additionally you are able to access the forum without having to sign up. Assuming you do check the forum you could have unlocked Flatline way before the event. Not forgetting Flatline is already in gauntlet store for some 12 days.
End of day, this game like any circumstances, we have limited resources and we have to make hard choices on who to unlock, upgrade, evolve etc. It all boils down to priorities.
In this case, one would sit out the event. Do look at all perspectives…