Today, years after some of these phones were released, they _still_ haven't released the keys so that people can easily run custom versions of Android on their phones and not a year ago they released a software upgrade that kept you on Gingerbread and locked you out of some methods to install custom ROMs.
They will prove they are serious when this phone has Nexus-like hackability. Until then, caveat emptor.
It also wasn't about hackability (your last sentence), it was about the phone simply generally sucking due to lack of updates.
But even if hackability is what you're waiting for, that's my point - if they do eventually provide it, re-evaluate at that time. I'm not sure it's healthy to write them off indefinitely because what you wanted, they didn't provide back then, when the company was obviously very different.
Further, I'd like a phone whose processing power is devoted to Android apps I choose, rather than carrier's undeleteable bloatware. I was hoping for something like a Nexus 5 this year, since the Nexus 4 seemed to have these traits.
I worry that the Moto X would replace a Nexus 5 in their roadmap, and that their desire to compete with the S4 will lead them to mimic it instead of having the kind of product I'd like.
So I see Google focusing so much effort on a Moto phone as a problem for me and what I want, not something to look forward to. Google once had the product I should have bought (Nexus 4), especially at that much lower price point.
I don't believe that Moto is any different now, because I haven't seen them implement better policies. From my POV, the burden of proof is on them to demonstrate they changed, since they decided to screw over me, and everyone else with a Photon. I don't need to give them any more money, unless they are obviously the very best phone available for me, and my wants aren't what people or the carriers apparently want.
In that respect, OP's done all right by ensuring that Motorola's past failures are front and center so that they understand the value of doing these things.
That said, the Motorola Photon Q 4G LTE (I'm not making that up) does have an unlockable bootloader so they are making progress.