Everyone has their own opinion and I really respect that. I think huge age gap romances aren’t wrong if these stories show healthy relationships among the couples. “Bully romance” and imbalanced power dynamics just aren’t appropriate be it between couples of the same age, small or huge age gap. There are many couples with huge age gaps out there so I don’t see any problem in writing an episode story like this. But again, everyone has their own opinion so some readers may like it, some don’t mind, and some may not like it.
I remember back when I was in school, my friends said that it’s impossible for our classmates (13 y/o) to date our 15 y/o senior because 2 years age gap is just too huge. But once we graduated from school, many of them dated or married people who are much younger or older than them. When I met my ex, I thought he was 2 years older than me. Turns out he is 18 years older than me. There’s no bully or power imbalance between us. Our relationship was healthy because we respect each other. I broke up with him because I want to focus on my studies atm.