Maybe it was a sun close to going out or an ignited gas giant or something other than your "average" sun.
Either way, there were so many things wrong with ME2 and 3 that my complaints never reached as far as the background animation...
Problem is, it was actually *foreground* animation in several points, and it was a major focus point in several main-story cutscenes. It was also present in most of one of the main character's scenes, being one of the core elements of them visually.
It gets worse when the color of the star is completely different depending on your last-second choice in the suicide mission...yeah, not one of ME2's bigger problems, I know, but still....
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Also, I'm not really referring to table data at all. The Aeolus, Hyperion, and Leviathan cruisers make several notable appearances in BP's campaigns, and if anything, the Leviathan makes the weakest showings in terms of durability.