PvE Players have no reason to whine about Engineers. In fact, they should rejoice at them, even as they are right now.
Given that NPC's, last I knew, did not have access to Engineered components, save the Elite level of NPC's, Engineering is only beneficial to PvE players.
PvP Players on the other hand, virtually have to stay competitive in their Engineering, but this is a problem they've created for themselves.
Where the real problem lies is in the mixing of PvE and PvP - aka Open.
Since it's an anything-goes environment, true PvE play is not possible, as anyone can be a target at any time, for any or no reason at all. This means PvE players have little option except to adapt to the environment.
But this really isn't a problem either. At least not one with the game itself. It's more like saying "I want to go to the bar where all the sailors are drinking, but I don't want to hear any cursing."
Personally, I have a love/hate relationship with Engineering.
I love that we can modify our systems.
I hate how we modify our systems.
I love that there is something like a crafting system in Elite.
I hate that we have little option in what we can actually make (synthesis is a different matter).
I love that there are options to what improvements we can make to any given system.
I hate that those options all all exclusive, and that some are, honestly, useless. (Faster FSD Boot Time AND Increase FSD Range? Nope, one or the other).
The real issue with Engineering isn't the (over) Engineering of ship's core systems, its in the weapons systems, and more specifically, in Weapons Special Effects.
Certain effects are simply far too useful - Thermal and Cascade come to mind. Incendiary munitions are not and should not be a Weapon effect, but rather an Ammunition effect.
Real-World Case In Point:
I own a SPAS-12 shotgun.
I can walk into my armory right now, pick up a box of Buckshot, load it up and fire buckshot. It functions like a standard shotgun.
I can also pick up a box of slugs, load it up, and I've got a long-range option.
I can pick up a box of Dragon's Breath shells, and turn my shotgun in a flame-thrower (thermal).
It's still the same shotgun. No changes required to switch from one kind of round to another.
I can even mix my rounds, loading shot, slug and incendiary rounds into it at the same time, and fire each in turn.
The point is, it's the ammo that makes the difference, not the weapon.
This should have been considered during the Weapons Special Effects planning meeting right from the start.
It's nearly too late to change this at this point - the amount of salt this would produce would boarder on lethal, but really it's where the real problem lies.