Split lights aren't necessarily ineffective. They are just half the size the light was intended to be and so close together that many more patterns and setups fail than with the same lights solid. Splitting lights doesn't always ruin them, but it almost never improves them.
Why are you surprised that people who use warning lights to get to emergency scenes are "anal" about how they work?
Out of curiosity what is your experience level with "wiring synching and forgetting"? How many lights have you installed, spec ed, setup etc?
Since I have some free time, I will help you see why your previous post is an example of flawed logic, among other things.
Plain wrong. Changing the foot print of the light matters. You are turning one big light into two little ones flush against each other. Of course that matters. It doesn't always make it unusable, but it rarely if ever helps.
Also just plain wrong. Try reading the site before posting on it. You can mash 10 900 series super LEDs next to each other and setup poorly they will be visible but totally ineffective as warning.
What are you basing "what people notice" on? There are plenty of resources both on and off this site about how the human eye detects color, light etc. The fact is certain patterns and color combos are just not perceived as warning, but rather a blur. Enducate yourself before trying to tell people what humans notice.
This is the main logic fail. You seem to equate the public caring with effective warning. The average person doesn't care about the lights on a vehicle at all, let alone what pattern they are. You made the mistake of trying to make public opinion synonymous with effective traffic clearing. People caring about the setup is irrelevant, people seeing it and identifying it as warning is what matters.
Which they won't be doing if they can't see you or don't know you are an emergency vehicle because of ineffectively setup lights.
http://elightbars.org/forums/f13/good-lights-ruined-split-flash-8530/