Question for Toyota/Lexus: Why do you never allow your customers to choose the most luxurious interior and pair it with the most off-road worthy suspension and drive train?
I think it uiltimately comes down to volume manufacturing versus how vehicles are most likely to be desirably equipped for customers. Manufacturers have generally gone more heavily towards trim lines than individualized options in the last 5 to 10 years I'd say, especially for mainstream vehicles. This is also why you see so many damn white, black and silver cars, since most people are perfectly happy driving them and they are vanilla.
As it is with Toyota (I don't know about Lexus), in general you cannot really order a specific vehicle that you want but are rather at the mercy of dealer allocation and vehicles out there ultimately matching what you find desirable in a trim. I know when I got my 2020 TRD Pro, I basically put my name on a list immediately when the army green color was announced in May 2019 and was able to snag the first of several 2020 allocations in November 2019 for my dealer of choice.
That is one thing I have enjoyed about both my Land Rover and previously my Audi TT-S which were custom orders. We literally were able to get the vehicle with EVERYTHING we wanted and NOTHING we didn't. I'd much rather wait 4 to 6 months for the perfect vehicle than wait 4 to 6 months to see if I get lucky that a dealer(s) can locate what I want coming in via their allocation.