Trick Flow 190 Heads, hydraulic roller cam, and pushrod angle Question.

I'm pretty sure the lifters are in backwards.

The bigger question is why do people who are otherwise well-based insists on using hydraulic rollers? They're the worst of the worst. Hydraulic flat tappets are a close second.
Could you elaborate on that please. Everyone has different opinions on what parts to use. I am interested on how you would proceed with this.