"They found the suspension was harsh over 1" bumps, jolting the handlebars."
When the bike is new, yes. After a few thousand miles, no -- the suspension softens up pretty nicely in time.
"low ground clearance"
For a sport tourer (which the CTX1300 ISN'T), maybe; but it has more clearance than any other bagger I've ridden.
"(but it did 'carve arcs through the twisties with grace')"
Yes, and is this not all that really matters to those of us who aren't out to drag knees on every corner?
"...and the completely reworked ST 1300 engine lacking in power (their measured 73 hp vs. the ST's 106 hp)."
Comments like this make me wonder if the guy even rode this thing. As was noted earlier, this engine in the CTX1300 has more torque down low than the ST1300. For most riders, the power this bike has and where it delivers it is more than adequate. I've owned an ST1300, and a VFR800, and a couple of large-displacement cruisers that will dislocate your shoulders on a launch if you're not careful; I am completely satisfied with the performance of the CTX1300.
Is the CTX1300 perfect? No. But when they say "lots of flash, little substance", I have to wonder exactly what "substance" they're talking about. It's not a sport bike, sport tourer, or full tourer. It's something right in between, and it hits that target very nicely.