LM5017 maximum operation temp

Hi,

the maximum operating junction temp of LM5017 is +125 degrees C,

but in the description about thermal protection (D/S page11),

 " the junction temperature does not exceed 150°C during normal operation."

does it mean that It's allowed to use LM5017 under the condition of the junction temp above +125 degrees C?

What does the "normal operation" mean?

Thanks,

Go