It happens a lot with commercial products, for example the car company Kia. Except they spell if Kappa Iota Lambda (KIL). Why? That is just one example among many I see nowadays. Are all these companies just trying to be cute or is there something I don't know about? Is it now acceptable to use lambda for A?
This was originally a comment, but I thought it appropriate to edit the question.
If this is just one company's stylization then I would say it would be off-topic and would not have asked the question. But I see this EVERYWHERE.
Duncan Donuts stylized the word doughnut, but now, "donut" is considered an acceptable spelling. And that's just one company. And phonetically, it's correct. "Nite" for night is used too, and it's phonetically correct as well.
If Duncan Donut's stylization can change the English language, why can't the use of lambda (and yes, folks, it is a lambda) lead to a change as well? I don't think people are appreciating the ubiquity of this "stylization."