This reminds me of Henry Ford's "faster horse."
In an ideal world, there would be no fob. As
@Bobby likes to say, "Fob, schmob."
Lucid is working towards that ideal. They have not yet achieved it, of course. Thus, the plastic thing most of us carry.
Personally, I'm in favor of companies who shoot for the stars and miss over ones who make no effort to move the state of the art forward. I'd rather they spent as little time thinking about the fob as possible and spend that time eliminating the need for a fob in the first place.
Some day in the not-so-distant future, no cars will have a fob of any kind. Your car will simply recognize you when you approach and open. 100% of the time. This is certainly more easily attainable than self-driving. And it's better than an over-engineered block of plastic and electronics presented inside a fancy glass and carbon fiber cylinder any day.
You can laugh and say Lucid is silly for proposing we are already in this utopia when clearly we are not. But as far as I can tell, the only time technology has been pushed forward is when it gets pushed just a little before it's quite ready.
I get most people would rather live in the present, where the things they love already work "fine" and "Please don't change anything, thank you very much."
But someone has to be out there asking "Why have a fob?" instead of "How do we make a fancier fob?"