There is no "who's the frame data in T7 for?" it's the addition regardless because it was the right thing to do. You have to keep up with the times to leave that shit open.
I'll admit it's convenient but it seems like a thankless gesture to throw it in almost 5 years after launch, should of released with it or waited till T8 to put it in, but throwing it now? Naw
On the fair note, there is also some inaccurate data from community at times (SF had moments like this before frame data was even included). To have it legit out means that a community no longer have to do it when it's a developer's job to leave it open for everyone.
It took this long because Harada was against having that information readily available. He still has the old school arcade mindset, which is fine, but damn near every other game is giving out that information and honestly T8 is probably not coming out any time soon. Times change and he probably finally accepted that.