Threads like this will exist as long as Apple exists.
Whining about a perceived "decline" of Apple probably started around 1984 with the Macintosh.
You're probably right! I guess MacObserver tracks its "official" Apple Death Knell count as up to 71 now, but starting only in 1995. Obviously that establishment has its own set of criteria for what counts as another tap on that mythical bell though... and individual posts in social media clearly don't count.
I remember being mocked by a few friends at work for having shelled out a used car's worth of dough for a 512k Mac in 1985... and shortly before that we had all kinda wondered where Apple thought they were gonna go with that ten thousand dollar crash-prone precursor, the Lisa.
But just a few years later we were dragging our Macs into work to show the boss how we had come up with working prototypes overnight for our in-house clients, using Hypercard and some XCMDs to access networked data. The clients then went all in agitating for the company to underwrite Macs instead of PCs for a lot of applications at that point, not least because it empowered them and us in the IT group to meet their data collection and reporting requirements so much faster. Eventually the IT tech support chimed in saying the maintenance and OS patching issues were fewer on the Mac side. We left the PCs in charge of stuffy ol' essentials like general ledger and payroll, but at that point otherwise, our local death knell counter was sounding for PC desktops...
Like any other company Apple has left some experiments in the dust but not without stashing away the value of having explored this or that road from drawing board to prototype to feasibility and so to market. Nothing ventured, nothing gained. The trick is knowing when to build out a product line versus trying another road to giving consumers the next thing they hadn't realized would come in handy -- whether hardware, software or services.
I'll credit Apple with having provided substantial and fairly long term support for its existing product lines while trying to move forward at the same time. Lately though I do wonder about quality and possibly some design decisions on newer hardware.
The keyboard issue on the MBPs seems both overblown and undermanaged to me. Time will tell and I suppose it's an acknowledgment by Apple that it will take time to sort it out since they put up the extended repair program.
Some other issues seem more "let the consumer decide" -- like the right size for a smartphone, and there it would seem that keeping choice in the lineup is the way to go. Apple does seem aware that there's at least an ongoing niche market for the SE-sized phones, so I wouldn't be surprised to see that turn up the post-X iPhone offerings.