As long as its possible, then it's not pay to win. It's more like pay for quicker progress. In League of Legends you can buy every champion with in-game currency OR you can pay money for them to get them instantly, yet literally no one complains about it. Hell, it takes longer to get the more expensive champions than it is to get a BAR via shells/car missions/trash picking. If you think getting a lot of money in Era without paying is hard, you're horribly mistaken. Compared to just about every MMO(RPG), it's easy as hell to get top-level equipment.

Edit: GG