I think AEON, as a company, is trying to get stuff sold. They are following a dead-end track to the very end. Once they get there I don't think there is a plan B to save their efforts. I think Trevor Dickinson is making an honorable effort to try to push the plan A solution but there really isn't much of a market for PPC desktop computers as a whole nowadays.
When I found out that AmigaOS 4.x was going to stay PPC-only even though improved FPGA-based solutions started presenting themselves as a sequel to the Classic Amiga chipsets, I reverted to AmigaOS 3.x and started looking toward AROS as a solution for any next-generation style needs. I especially value AROS 68k as a potential improvement over and above AmigaOS 3.x as I start adding features that the chipsets have that the OS never adequately supported.
My vote: No. Bashing the X1000 is justifiable given that the AmigaOS team will forever be understaffed due to being a commercial venture with a limited market. Even the closed-source shareware route of MorphOS is of limited usefulness since it is PPC only and also understaffed (though MorphOS is faster than AmigaOS 4.x since MorphOS doesn't use interfaces in its shared libraries).
I think that the only hobby operating systems worth mentioning are AROS and Haiku. AROS, because it is open-source, supports a number of processor architectures, and is largely self-supporting. Also Haiku because it is multithreaded and pervasively object-oriented (not to mention largely open-source). Both of those are fairly quick compared to modern commercial OSs on modern hardware.