If you participate in the fandom you will notice that the people who thrive off the anti-capitalist interpretation seemingly have no time for Aerith in particular. Because she's such an obvious problem for that take. Everything else can be resized and resituated in the narrative to magnify their preferred take, except for her and she has the most iconic scene and the longest direct contact with the central plot. They also tend to present the game as having a pro-mental health message to tie up the loose ends around Nibelheim that also don't neatly fit anti-capitalism but can still be enlisted in basically the same Millennial Political Programming coalition.
But you could write an entire paper over the emotional contortions such a seemingly inoffensive can character cause. You have people who like Remake Jessie calling her 'annoying' for instance, and Remake Jessie has every negative trait it was trendy to give Aerith on tumblr in the 2010s.