Maybe it’s just me or the overly aggressive races just come off as stupid or at least unimpressive. Like the Klingon policy of shoot first ask questions later is just outright primitive, and the Romulans are no exception. The show always labels the Romulans as fascist Vulcans and sure they have “feats” to back this up but seriously, every encounter Enterprise has with these monkeys I don’t see their behaviors as rational for starters individually they were all overly suspicious which isn’t indicative with intelligence furthermore they just don’t seem have the fortitude to seriously back up their whole imperial Image. In fact the National Federation doesn’t seem all too concerned with them as for most of their ships are designed for exploration in luxury and not true military defense. So far the outcome of this shows that the Federation was right to not really be to concerned with the Romulans. Maybe the show just isn’t properly portraying them either way I almost forget them until they become a slight nuisance once in a while.