Better example would be showing them full def barb with weapon swap vs full atk gear ea.
Or full def with x3 int sleeves sin/wr vs mage in atk armor.
Dying in the video you showed is natural, he wasnt even self buffed. The damage you took was also normal, taking an ep buffed spark in dragon armor. You should learn DPH soon dom, soon aps dragon will simply not be viable.