Oh I find it interesting.
As I understand it, the INTJ has extroverted sensing, which would cause them to be more similar to the SJs who are tactical, so that makes sense.
Strategic isn't just planning before action, it also includes understanding complex systems easily.
Basically, I think your personality is slightly better, hm, I mean "different", than those who are SJs and only have tactical as a strength 😇
I'm supposed to be the diplomat, and sure, I do have that, but I also have a high adaptability and so I can work in all 4 domains. I've thought of myself more as a strategic person, though when comparing it with my husband who is an ENTP who has maybe the most strategic, it looks different.
He has very low action energy, so he thinks before he starts acting, whereas I get just enough info and then I start acting and I idirate as I go. But my ability to understand the system is what helps me be more tactical. If I don't know why, it's really hard for me to act with confidence.