Driver Brainstorming Puzzle / identification / issue resolving

Please see this thread here comfychair-inspired quick+cheap+lazy single-sided 17DD FET-driver (poor man's nanjg92)

That is DIY FET…

How is possible that DIY is better than this? Thicker +(plus) vias or something? Does MCU regulates current flow or that resistors add additional resistance :laughing: ?

I don’t know… All I know my “new driver” sucks !