No worries, Hu.
Like i said, it's pretty much the nature of the business...any business for that matter. I think one thing Harrison Specialties is doing is providing a lower-cost alternative to popular tools, and I can't fault them for it, nor can I fault the people who buy them. Heck, I play a couple of Asian knock-offs of popular American guitars because I wasn't willing or able to pay the high prices of the originals.
Like I said earlier, it looks like your new hollowing rig is a good piece of kit...it should serve you well.