I feel like taking issue with a word, even when used in a perfectly valid situation, is something worth reflection. Like fair enough if you've heard problematic used in ways you disagree with before, but maybe respond to those comments, not one where you agree with its use. Unless you actually do mean to defend Musk and don't think lying to investors, calling people pedos for saving kids, delaying public infrastructure, doing Nazi salutes, etc. etc. is problematic.