Tech advancing this fast (assuming it’s not just marketing and wishful thinking, which I think it is to a degree at this stage) is a good thing - cost of 4k drops, adaptability increases, and we get a higher chance of some old masters getting dusted off for that reason.
Consumers will benefit (I highly doubt we’ll be seeing 8k BDs anytime soon), and insane people will get to buy some really nice, really expensive, and really useless TVs.