I actually think it would be really interesting. I would think about submitting it without naming names - people can (and most likely will) draw their own conclusions but you wouldn't be outright criticizing anyone. Furthermore, I doubt there's a whole lot of rabid Trump supporters reading linguistic analysis academic journals. And who knows -- the orange one's ego is so large that he might be flattered to be the subject of someone's research and think that he comes off looking "terrific, just terrific, many people say I give the best speeches, college professors are even writing articles about my speeches......"
Disclaimer: Ty did something similar for a college class, feeding Trump's vs Obama's SOTU speeches into some kind of AI analyzer thing and analyzing the frequency and tone of words used, and it was honestly fascinating how different they were. And when I taught freshman composition many years ago at tOSU, I'd VCR the SOTU speech, play it in class, and we'd all analyze it together looking for the different rhetorical techiques that I was teaching them about. So maybe I just have a thing for linguistic analysis of political speeches, which case, my opinion is clearly biased LOL.