how does this design really improve EFT immunity.

[![enter image description here](https://i.stack.imgur.com/raQHm.png)](https://i.stack.imgur.com/raQHm.png)

where does EFT come from i guess (VDD) as spike ?
in my estimation i would say (10k+100nF) is more robust from changes on VDD?

in fact the 100pF is low impedance at high frequencies so its shorting reset pin to VDD ?

im really confused ..