I'm pretty fine with stuff that broadens the gameplay as long as the starting gear is as viable. Once the powercreep comes in, you have the problem of unfair matchups. Tiered Matchups bring the problem with partitioning the player base and potentially giving you trouble finding a match.Actually "grinding" is very common in all kinds of shooters, including the "arena" type first-person shooters.
Of course in those you aren't grinding for in-game loot. You are grinding your own skills. And with the most popular shooters we are talking about one or more probably two orders of magnitude of more grinding that you'll ever need to do in ED in order to merely not end up at the bottom of the list every round.
There's a reason why I never play those games. They make absolutely no sense. You literally need to play for thousands of hours in order to hone the skills necessary to stand against the average player and not get immediately killed.
In that sense having to spend a couple of hours grinding for materials for better weapons and armor is a walk in the park.
Foxhole is a decent PvP game since progress is a faction wide effort. I need not grind mats I can grind "lives" at the front instead. Fractured Space was a decent PvP MoBa - like. You accumulated points to buy new ships that played differently. Each had unique playstyle but none of them was really overpowered. What made a difference was how you played. I think stuff like League of Legends takes similar approach.
And that is the approach I prefer in games, too. I don't want to play uphill battles until I did my chores. That's not what I paid for - I pay for entertainment.