I can understand u but pls keep in mind that almost no company is sharing informations on upcoming releases, leading to people buying a device maybe just one day ahead of a new release.
So imho ww can be greatful that xiaomi is sharing any information with us.
Besides that there can always be reasons to fall behind plan and jet its great to hear that they will make the bulb as good as they can leading to a product that can be used for several years after release.
The release will be when the bulb is done i am pretty used to be wainting way longer then the first release date and i think if the product is very good after release the time was well worth it.
I dont know if you heared of amd vega which took almost a xear longer then said to be release and then was a hughe disappointment, same goes for a lot of games, look at star citizen.
I am still looking forward 2 the bulb and i expect it 2 be released befor the end of q1 2018.