Of course everyone wants the newest, but it doesnt make it obsolete.
As I said Kickr original is still working and supported. So is the original Neo.
The Kickr bike in terms of how the trainer component works was a development for Wahoo as it is now more similar to the Neos than the regular Kickr / Core.
Also if history is anything to go by, any new version will have limited supply for a while and will have teething issues - so in my view for those that want one and can afford it, the current gen of smart bikes are still perfectly valid purchases. Also because many teething problems have been ironed out (other than perhaps the SB20)