There have been repeated attempts to create various different auto-generating code for the last 20-30 years or so. Each time, it's marketed as something revolutionary, but it never becomes a success. This isn't something new at all. Siemens/Infineon had such tools way back in the late 1990s. Motorola/Freescale also attempted something similar in the early 2000s. Microchip, too, though I never used it.
Sure, part of the reason why it never becomes a success might be orthodox programmers who hate everything new. I mean, people still use 8-bit MCUs even today, and the main reason for doing so isn't technical, but "I don't want to learn anything new". There is a valid argument hidden in there, though: once you learn a toolchain well, you get incredibly productive with those parts, so you do reduce time to market significantly if you keep using the same old tools for the same old MCU family.
But I suspect that the main reason why auto-generating code never kicks off is this: when things go wrong, you need to be able to troubleshoot your code. If you haven't got a clue about what the registers do and never even read the manual, you will be lost, with no way of recovering the program. Sooner or later, you will actually have to know what you are doing.
One real-life anecdote demonstrating this is when I worked at a workshop using a toolchain that I already knew well, and they tried to sell us auto-generating tools. I poked around a bit and asked the guy giving the presentation why the tool needed to compile 130k lines of code to toggle a GPIO pin on and off…he didn't know.
This has always been an issue with pre-made libraries or auto code generators made by silicon vendors—they are of incredibly poor quality. The silicon vendors have some sort of internal branch competition over who can produce the most horrible toolchain of all time, or the most horrible open-source library, or the worst written code examples in their application notes. Some of the worst tools, libraries, and code I have ever encountered in my programming career have come from silicon vendors. The various poor Eclipse IDEs by pretty much every silicon vendor stand out in particular. For example, (speaking of Silabs) Simplicity Studio is perhaps the most dysfunctional programming tool ever released, across all categories.
Is there a future for some of the worst programming tools ever released? I doubt so, and that has nothing to do with auto code generation and everything to do with non-existing quality. Bugs, bugs and more bugs.
Having some manner of reference code, auto-generated or not, is a huge time-saver, however. It's pure madness to have a MCU vendor sell a particular part to a thousand different customers, then each and every one of them has to re-invent the wheel by writing their own drivers for timers, ADC, SPI, UART, and other very common stuff. Also, MCUs only become more and more complicated, with intricate clock set-ups, peripheral routing, DMA, and so on. Looking at pre-made code helps.