ESD array power and protect from same source
So I learned and answered my original Questions after some R&amp;D :
ESD protection is different for

Digital I/O Lines
Power Lines

Digital IO Lines :

as they are usually one way Industry preference if for high preference for unidirectional TVS
Additionally CMOS inputs are VERY sensitive to negative spikes, and unidirectional TVS have IV characteristic curves where cutoff/forward bias for negative spike is MUCH less than Positive spike
Power Dissipation Requirement is low, order of milliWatts

Power Lines :

Require Large Power Dissipiation (watts)
Industry practise is to use bidirectional TVS's

The above IC being used and tested, and even thoough working, WILL not provide rectification for power, as it is rated ONLY for ~250milliWatts.
Going to replace :-

Digitial IO Protection with : Applied-Power-AU3321D5_C393856 @ LCSC $0.03
Power Line Protection with : MMBZ5V6ALT1 @ Digikey (0.10), and LCSC @ $0.03 with 40Watts sinking capability.