I too bought an AxeFX because it sounds so good. But does making it 0.00001% more accurate make a difference to the distance between it and the competition that anyone will notice? The top modelers all sound great now. It's all the other things, like UI, that make a difference now.
The way I see it, let the developers worry about accuracy and us users would be better off just being concerned with "Do I like how it sounds/feels? Does it work for my usecases?" type stuff.
If the modeling gets more accurate over time, cool, but it's never been a problem to get good sounds out of these things.
My first modeler was a Yamaha DG80 1x12 combo, released in 1998. I bought it because I heard someone play Dream Theater stuff really well on it in a store and it sounded just great to me. "If that guy gets so good tones out of it, so can I!" Everyone who played it liked how it sounded. It wasn't accurate, it tended to make all guitars sound a bit too similar, but it sounded good.
Then I got into tube amps and was on that route until the Axe-Fx Standard/Ultra started getting word of mouth recommendations online. I had a Diezel Einstein 1x12 combo and an Egnater Tourmaster head + 2x12 with V30+G12H-100 at the time. Bought the Axe-Fx, hooked it up to the poweramps of the tube amps. Thought it sounded just as good, and I got all these other amps now at my disposal! Sold the tube amps, bought an Atomic FR 1x12 (50W tube poweramp + woofer + tweeter) to make proper use of the cab sims.
Then I upgraded to the Axe-Fx 2 Mk1. Used the Axe-Fx 2 + Atomic rig for like 6 years. Happy as a clam about how it sounded through all those named major firmware updates. "Eh, I guess it sounds better now, that's nice!" But I was increasingly frustrated with how it operated without Axe-Edit.
Then the Axe-Fx 3 released and I saw the front panel, and I was just hugely disappointed. The one thing I wanted it to do truly better wasn't there on the new thing. That crap front panel layout was still there, it had lost some of the actually useful setup buttons but at least some of the knobs were now under the screen. Sold my Axe-Fx 2 rig and went back to tube amps for a few years.
Now the snake has eaten its own tail and I'm back with an Axe-Fx 3 Mk2 sitting on my desk. I still avoid the front panel as much as I can. It's a great box when you work with it exclusively using Axe-Edit.
I find myself using my BluGuitar + pedals + real cabs rig way more these days and it's basically a curated "only the things I like" setup. Marshall tones, tape delays, plate reverbs, a bit of compression, modulation and fuzz here and there.
But honestly I can throw a Strymon Iridium into this rig and get most of the things I'd do on the Axe-Fx so I'll probably sell the Fractal at some point and buy another one depending on what the next gen looks like.
I do wish Fractal would make a small effects pedal with their delays and reverbs. I'd buy that immediately.