My 50 year career in music was pretty well divided into 25 years as a symphony musician and 25 years as a recording engineer. The major orchestra I performed in played in some of the world's best concert halls. Two of the best were the "Musikverein" in Vienna and Theatro Colon in Buenos Aries. As an example of the use of sound reinforcement, Royal Festival Hall in London is outstanding. They quietly, over the period of more than a year, gradually introduced the system until critics praised the hall as becoming more and more refined, like the ageing process of a fine violin. They were enraged to find that they were duped when the secret was revealed ! My first encounter with the hall left me with the impression that it was impossible to fill that huge hall with sound, but on another visit a dozen years later, when the system was activated, it was a very comfortable hall in which to play.
Just as properly placed microphones that provide a sightline to all parts of an orchestra give an honest sonic description of the ensemble, so does listening from a vantage point in the hall from which all instrumentalists are visible. Though there are a few exceptions, most venues place the orchestra above the level of the main floor's audience. Listening from the front row of any hall requires the listener to accept that three-quarters of the orchestra is being "filtered" through the first few rows of instrumentalists. Not an ideal listening situation although it might appeal to some.
A reasonably well known reviewer often was critical of the orchestra in which I performed. It wasn't until an unusual circumstance forced him to sit in a different seat that he realized that his longtime seat was at a "null" point in the hall. His criticisms were correct when made from HIS seat !
This is a good place to quote Duke Ellington : "If it sounds good --- it IS good" ! There is a seat in every hall for every kind of listener and the quest to find it is worth the price of admission. Keep buying those tickets !!