LTSpice Op Amp Model Accuracy
That makes sense based on what I see in the data sheet. In the DS there is a graph of open loop gain (figure at top right of page 10) and it shows a corner frequency of about 5 Hz at a gain of about 125 dB. Now if I extended that graph to extend the dc gain a few more dB higher you would see something like this: -



At 140 dB, that corner frequency could be argued to be "much below 1 Hz".

The graph in the DS is typical and you could reasonably argue that there is a case for the open-loop gain being potentially higher. But it's all a moot point because nobody uses op-amps in this region without negative feedback and, in reality, who cares that much if this is a few dB out in this not-really-very-realistic-test?


  Are op amp models in LTSpice generally not that accurate to real
  devices?


I'd argue that the op-amp model you have is reasonable and would give reasonable results in real world applications using negative feedback.