Crappy aircraft
In my view the ATR is a huge compromise. Underpowered and poorly designed. How they got the "double pull" procedure approved is really beyond strange.
The only benefit of the ATR is that it gets 70 ish people into the air as cheap as possible. Compared to the SAAB 2000:s 4152 SHP the ATR 72-600 is, with it's 2475 SHP, quite underpowered. Bear in mind that they have roughly the same MTOM (ATR 200 kg lower).
Some ATR driver might also shed some light to the engine problems the ATR fleet has had in recent times. Something about massive propeller vibrations?
Maybe the cause of this accident?