Someone's decisions turned out poorly, someone makes poor decisions, and someone is a poor decision-maker are three rather different statements, meaning three different things. I suspect Lewk does not and would not parse them all that correctly or distinctly though, and I know for certain that he's wrongly conflating the first of those, that someone has made decisions which turned out poorly, with someone makes decisions that are going to turn out poorly. He thinks bad outcomes in the past provides predictive power for bad outcomes in the future which is absolutely untrue and is weak even as a correlate since it's at about three removes from the actual causes and effects.