If it wasn't designed to replicate the drop bar position when using bull horns, it isn't a lo-pro.
The fact that the position looks OK with drops on it is the proof that it clearly isn't lo-pro. Bikes have been built with sloping top tubes for at least a century to get normal bars a bit lower without having to use an extended seat post, but they were not lo-pro then and they aren't now.
If it wasn't designed to replicate the drop bar position when using bull horns, it isn't a lo-pro.
The fact that the position looks OK with drops on it is the proof that it clearly isn't lo-pro. Bikes have been built with sloping top tubes for at least a century to get normal bars a bit lower without having to use an extended seat post, but they were not lo-pro then and they aren't now.