How was the 300 total wins number decided? Because frankly it seems too much.
If you're going off of normal gauntlet wins, those are bloated by the gauntlet title chasers(a small subset of players) who were always going to hit hundreds of wins with amulets even though they get nothing out if it.

If you're going off of Arena wins, again you're going off of a tiny fraction of players who waste their resources for bragging rights.

The only people who can hit this 300 win target and thus get goal of this event without IAP or a sizeable Ironite spend are those were going to meet the goal regardless(and thus should be omitted) and those who intentionally tank their arena rank down to the AI teams built for players who just started the game.

I was really hoping I could say something positive about this event after always being negative about Arena and Gauntlet events but this still doesn't address of the main issues. This is still a Tank or Pay event