What exactly do you think is the “more technology development than the current flights actually show“ needed to get into and out of orbit?
My impression is they just need to leave the engines on a little longer to get to orbit, then turn them on again with the ship pointed in another direction to get back to the suborbital trajectory they’ve already demonstrated deorbiting from.
The hard part is reentering through the atmosphere without burning up, flipping, and landing, which they’ve already demonstrated multiple times. There’s no additional atmosphere between where they’ve flown and “orbit”.
They mentioned in the stream they were intentionally stressing the ship on reentry.
But yes, “rapid reusability” is a ways off. I expect they’ll be spending weeks inspecting and repairing ship and booster before reflight for a few years, but they’ll drive it down over time.
TBD how “rapid” the reusability ends up being in the end.