as Amazigh says, "close support" is pretty much exactly what you are describing the missiles are useful for.
Starsector has a bit of a missile problem in general, and things like Harpoons are the main culprits. the old Voidspears were very similar in that respect. so now they are more of a support missile, while the new Rage SRMs are powerful damage dealers that still mostly manage to avoid the issues of Harpoons & co.
Those rage SRM are not that great either. The damage is okay, their accuracy is questionable, but there is already a better vanilla option. I guess you're right though, they do avoid the "problem" of Harpoons I guess, in that Harpoons are a solid choice all around, whereas the rage SRM makes you think twice about buying it. Frankley I dont see a point in them, if your going to increase the risk of damage to your hull by getting close enough for these missiles to hit (and you have to be VERY close because these things lose fire in like one second) then they SHOULD do more damage than the Harpoons, which are a medium range missile. Right now the harpoon offers better damage than the SRM rage without the increase in risk because of its range.
Im sure most people have already played vanilla and are getting tired of it already and thus come to this forum to mod their game for something different, which Is why I make my best effort to see if I can make these modded weapon systems and ships work, but alot of the time I just go back to the vanilla systems because they are just more tried, true, and effective. I feel like modders are afraid to make something just alittle bit too strong (maybe theres some kind of modder council or something and they will get voted off
) when the whole point of modding, in my opinion, is to make the game more fun and increase the longevity. I want the SRM rage and the other modded weapon systems to feel "impactful" at least, and its not what I get when I use the new Voidspear or these new SRM, they are obviously tuned very finely to not overshadow the vanilla options, which is good "balanced" design. They are alittle too tuned though, to the point where the vanilla option kinda feels like the best choice even though you went through the trouble of downloading the mod for something different. Im just ranting at this point though, getting off topic. I think the aesthetics of this particular series of ships is amazing, although they feel alittle underwhelming at the moment, especially in the hands of the AI who cant make use of how these ships are designed.