Glad to hear your home & stuff is OK TuteTibiImperes. Camping out for a bit I guess. I see there are mildew prevention stickers on the cabinets...but I do not imagine they are effective through flooding
I have been involved in selling audio most of my life, and did not understand the woofer measurements at all. It is interesting that apparently more than one owner measured the same not great results.
HOWEVER, I am not going to be the least concerned until all is hooked up and auditioned. We were certainly not "duped".
If you have seen the care taken in the packaging and labeling of the DIY 2.2 you can tell there was time and a good bit of money spent on doing things right. The cabinets are well constructed, carefully finished, well braced, and quite heavy. You can almost always judge a speaker's construction quality by banging on the cabinet, these sound like tree trunks. The most expensive part of a good speaker is generally the cabinet.
The 2 drivers also look to be extremely well built, very heavy, nicely finished, the woofer has a cast basket.
So while a manufacturing defect is certainly possible, it makes absolutely no economic sense for HiVi to spend all of that money creating and shipping 60 pounds of kit from China and then substituting expensively built but crap drivers on purpose.
I have seen a lot of crap "dupe the public" white van speakers. They all feature thin cabinets, pressed baskets that ring like a bell, and crossovers that consist of maybe a cap so the tweeter does not explode. Oh, and usually white woofer cones and silvery trim rings. But I digress.
I am betting the 2.2s sound excellent. I have a pair of similarly sized Jamo C-93s here to compare them to and am looking forward to the shoot out.