Perhaps consider that a concert hall filled with a couple of hundred instruments built to a standard tuning, the materials and techniques involved, and the sheet music notation system used to reproduce works and train the players, was absolute pinnacle, state-of-the-art technology in the early 18th century.
As in, only the military had greater ability to deploy the latest materials, precision manufacturing techniques and information technology etc. at the scale required.
The symphony orchestra and the music written for it was a product of the social and technological circumstances of its time, every bit as much as the LP & CD album format (which is also, sadly, looking increasingly obsolescent this last decade or so).