HTC brought that to themselves by making gameplay choice errors, blaming the economics is an easy way out.
I agree, admitting your wrong and making changes, is something HTC doesn't seem like something they like to do.
More like resting on their laurels. AH3 should have been set in motion years before.
I dont know all the dates (calling Lusche!), nor the internal workings at HTC, but this is how I see it.
AH2 is released, and you figure 6-12 months of tweaking, fixing bugs, adding those last few things they wanted in but weren't finished for the release. Take a break (very short one), and start looking into a new graphics engine/update. Whether they used their own software, or bought/negotiated a graphics engine the work starts on the update. To get the basic background code down could take a year or so before they even get something they can "fly" in. Then they start fleshing out what they have, cleaning up bugs as they go along. Integrating the new software with the old (server side, scoring, flight mechanics, virtual world and so on).
Now they have something they can go on line with and ask for volunteers to help out with the alpha. Another 6 mouths to a year goes by and the beta is opened for the masses. Another almost year goes by and then AH3 is released.
Resting on their laurels, I don't think so.