Wrong again. As for your experience, you either worked for a firm that didn't follow proper law or your just full of ****. Research the term "duty days" for athletes and coaches. I get that you love to think your a know it all but your not.
As far as you personally, not paying taxes to those states doesn't mean you followed the law. For one, 2 out of 5 of those states you listed are non-taxable states, so of course you didn't pay income taxes to those states. And some states do have a de minimis rules so if you make very little money, then your probably following inside the law. And this also depends a lot on the industry you work in, and if your an employee vs a contract labor can be a factor. Example: My wife works for a major company and is in New York 2 weeks ever quarter, the law has ruled this de minimis. However, I consult for a contractor firm in Missouri that has workers going into Kansas, Arkansas, and Oklahoma and yes, we have to apportion their pay to each state. This is fact. The difference is their industry and each states law.
And if your so sure that you were not suppose to pay taxes on pay to the state of Arkansas (for example) forward me your information or the information of your company. I actually know the person in charge of the Department of Finance down there. You sure enough, that you'd be ok with them being audited?