That's true. He did make a big hundred (141) and look a million $ on that pitch. But everyone made runs on that pitch, in that match, so it doesn't count.
No wait, Watson, Clarke, Haddin and Hughes made only 84 between them in the same innings and Jayawardene and Dilshan only made 95 between them, for their 4 innings for the match (with no-one else but Hussey, for either team, making more than 69, in the three innings of the match).
Well, at least it was super-easy in his next innings, when he made an excellent 81. Oh no, wait. Watson, Clarke, Hughes, Johnson and Siddle (who have a combined test batting average of 158) made
22 between them, while Marsh ground out a hard fought 81, off 207 balls, with Hussey again being the only other one to pass 50.
Ok, well at least batting was piss-easy in the next test, when he made 44, against Sth Africa. Oh no, wait. Watson, Hughes, Ponting, Hussey and Haddin (who have a combined test batting average of over 200) made
26 between them in the same innings and we then bowled Sth Africa out for 96, before slumping to 9 for 21 in our second innings.
So he clearly can only bat when it's super-easy and obviously can't grind out an innings, as evidenced by him facing only 623 balls in those three innings I mentioned.
As for his current form, at least it's a really good idea to judge someone on how they go when they've only played one game in 6 weeks, with that game being in a completely different format. No, wait....