As someone who is used to a bit more old fashioned audio, just about all of the practices listed often cause me to scratch my head as to why. Especially the overuse of bi-wiring. It's as if it's something more of a strange fashion trend, like buying an SUV and then sticking a wannabe "Salt Life" decal on the back window.
Shipping, is probably half of why I would rather build my own than having assembled speakers shipped. Didn't stop my neighbor from running over to try and 'help' me carry a sheet of MDF after I already had it handled. He almost threw my back out, wrongly grabbing the end of the sheet while I was already in stride, and now I am having to wrestle him, and the sheet. I hung drywall and framed houses for 20 years. Handling large panels is second nature. Try explaining that to someone with that helpful glimmer in their eye on the fly, though. More often than not, you will have to hurt their feelings so they don't hurt you. My boss tries to help and I am always having to tell him to GTF away from me!
Appliance delivery teams are the best to handle large speakers. The poor girl cub from UPS that delivered my Tempest kit couldn't have weighed more than 110# and it was a good thing I was there to accept and she was thankful for it.