I certainly understand the OP's concerns, and I like change and new things. Loved the whole feel of X1 onwards and think our current version is the best by far - however, as much I would love to stay on top with self training like Craig does, I simply don't have the time. Full time 'real' job, nearly 60, young children (second time around), one about to start high school, and a full on job trying to produce a couple of new albums, I go nuts trying to make things happen. Learning Splat properly, simply has not happened. I use it, well enough I think, but hardly use any of the 'new' features, mostly finding workarounds to keep things going along the lines of X2, which is what I learnt best because I had the most time back then. Now, it's all about getting the job done, with the least amount of distractions, in the smallest time I can allocate to the job. So, I too, get very frustrated when I have to stop to either learn a new process, or to try and unravel the mysteries of latest failures, in order to get back to work.
IMHO, there is no software that operates like the 'old days'. I did all the photography and graphics to get my CD out earlier this year, and that was a nightmare learning the processes involved, and re-learning the current Adobe software, to get the CD and sleeves to the printers for production. Same for preparing the music for CD audio and digital media. The learning curve was so steep I kept falling off it.
But would I go backwards? No. Not at all. Mostly enjoy it. And I will update to Lexington, because I always try to keep up. But I'm still allowed to get frustrated and yell sometimes, just like the OP. Just helps sometimes lol!!