.net and .org were the original .xyz. Back in the late 90s and early 2000s they were seen as less reputable for businesses. I think they still carry some of that tarnish.
.org domains actually have some credibility as there's this misconception that you need to be a non-profit to register one, like how you have to be a accredited university to register a .edu domain or a government entity to register a .gov domain. .net domains however have a bad reputation regardless for some reason.