Hi Alan,
First off, this is an outstanding result with many and not easy to accomplish unique features.
To answer your question:
A blog about the build process is fine in its own right, since people get a place to discuss even off topic questions while the modeler is in the building process.
The feature however - and yours is really nicely written and performed - gives all interested condensed and related infromation. At least for me, a well written feature like yours saves a lot research time. Having to pick up the related information out of a build blog can be very time consuming for itself.
Beside that, the reference photos in a build log often are saved outside kitmaker network and plain linked to. Over the time, valuable information gets lost. In a feature however, at least this is my understanding, the reference photos and drawings are saved on the kitmaker network. That is a great benefit if you take future accessibility into account.
I fully comprehend, that a feature takes a lot of valuable time about personally closed matters. Closed, because you alredy dealt with the problems in the build log and found a working solution which are already shown there.
For this, I really appreciate your efforts in writing the feature and no, it is no waste of time but a rich addition crowning your build log efforts.
Best