Maybe I'm coming at this from a very different perspective. That is to say, many folks who jumped on the Avant were folks with a long and continuous history with B&O, they upgraded from another B&O television, it was almost as simple as removing one component in their BeoLives and welcoming a replacement.
I, on the other hand was a recovering Beophile, that is to say, had almost no B&O for years, and considering a new television, a B&O Television, no less, meant that I would need to basically start from scratch again. (As I'm packing my current receiver and speakers to post on eBay and Craigslist hoping for a decent buyer to give them a nice home, when my Beovision 11 arrives).
As a BeoPhile Mark II, I was considering much more than just latest and greatest. Design, reliability, bulletproof-ness of the build quality and technology were all considerations my wife and I discussed -- well, I discussed, she was likely paying attention to something else. Cautiously, I also considered that more actual moving parts means more chances for a fault, something breaking. I didn't want my new plunge into B&O to be one I'd regret. Now, mind you, I tried out both televisions in multiple dealers.
I don't claim to say that the BV11 is better than the Avant, nor do I think the Avant is better than the BV11, they both have their advantages, but it all comes down to what the user will value.
My wife and I value something we can buy and it looks good, and will function well for years, we don't have to fiddle with it, don't have to be concerned with moving it, etc. (ie. stand positions)... As for 4K, we don't care. We're happy and will be happy with our lowly 1080p (which will still kick the ass of any other non B&O TV in it's class).
In then end we're receiving a Beovision 11 next week. We were moved by the design, build quality, ease of use, sound, modularity (ie. we can change the speaker grill to different colors should we want to). Heck, if we wanted to we could at a likely significant cost, change the frame from our ordered black to silver if we wanted to as well. And we valued the fact that we wouldn't have to be worried about some of the issues that MkI avant users have posted here as well.
We're the boring people who wanted to buy something which used established technology, pushed to perfection. 😐