I don't know if it's knowing better or just cutting corners to lower costs. Many companies do it! Some get away with it, others don't. It would seem that Symantec has been falling out of favour with consumers and companies alike. There was a time when it was the largest PC security company around, but far from it these days. I know that I'd never use anything Norton or Symantec again. Besides eating up system resources like they were free snacks, NIS frequently found false positives and locked up things I wanted/needed to use.
In the end I found a better alternative and uninstalled it... and boy, didn't that take some doing. To remove every single trace of it was frustrating and time consuming, but that was before the official 'removal tool' was released. I've not used Norton again to see if that works as advertised, but I've heard that it is quite effective. My HP 2-in-1 came with Norton in the bloatware, but that was just a trial version and easily gotten rid of because it hadn't been installed or activated, etc. I mean, who in their right mind would install that?
Anyway, I've done all my 'hate this and hate that' for the day, I'm off to watch some cricket on TV... England vs Pakistan.