Whenever Apple launches a new product category for them, it seems they hit these types of problems or delays almost every time -- whereas Samsung doesn't seem to encounter as many issues. I'm interested in the Ultra if Apple doesn't release it with too many compromises. I've heard it won't have FaceID, MagSafe, a telescopic lens and possibly no stereo speakers. I can live with almost all of these but if there are no stereo speakers along with all the rest I'm out.
It's a slick marketing and salesmanship.
If you like a folding phone or you think it's a gimmick. Doesn't matter. The uptake for it is going to be niche. A lot of people won't buy it because it's a first year product, which is really smart given Apple's track record. This wisdom also translates into buying a car. You never buy the first year of a new design. Anything designed by even the most talented of engineers is going to see flaws exposed when it hits the real world. This is just basic engineering. You can't design out every challenge because you just can't think of everything.
So, the first production run of this thing is really a public beta, just like everything else new Apple does. Adoption will be limited to enthusiasts. Joe blow isn't going to walk into the local T Moblie or AT&T, see the most expensive iPhone there and say "gimmie that".
Which is fine for Apple. Initial product runs will be very limited. Even though they don't produce them in large numbers the media will report it as a "sensation" because it sold out on the first day of pre orders and is back ordered for 6 months. Not because that many people wanted it. They just didn't make a lot of them. Whether it's due to quality constraints, by design, or a combination of the two. Supply will be limited at first. Shortages and lines make headlines. Big sales numbers don't.
Not including Face ID, MagSafe, and stereo speakers in the first run is almost kind of the point. A lot of people consider the lack of a feature "suite" you mentioned deal breakers. As it sounds like you do. That's OK with Apple. The enthusiast crowd, the people that will buy it no matter what is large enough without it. You're not the target audience for this device THIS go around. They will have enough buyers for the amount they can reliably produce, with people waiting in the wings.
Adding these other features down the road is how you not only keep the early adopters on board for shorter upgrade cycles, but you drag in the "reluctant" people later on down the road. Next year you add MagSafe, or FaceID. The early adopters upgrade early, and some of the reluctant people come on board. Next year you add stereo speakers.
You get the point. If certain feature sets are kept from the original design, then there are compelling reasons to upgrade, and enticements for late adopters to come on board.
I'm sure some of the limitations are indeed technical, but it would be naïve to think that someone isn't sitting in a meeting having this exact conversation when product development starts.