But in general a line array has three major virtues ( if you want the seminal engineering text on the subject consult Harry Olson : Elements of Acoustical Engineering )
Controlled dispersion and relatively high output with a low duty cycle. virtues but with significant tradeoff.
For those of us with real tangible ownership experience w line arrays, the magic is good and the downsides significant- often the designer ( really talented engineers like Nudel ( odd he didn’t join the “ we club of writers ‘ ) eventually end up with three line arrays...which dont blend all that well... when it fells - awesome, when they don’t maddening.... where is Infinity today ? And they were built with mostly stellar drivers.
as mentioned By others, all speakers involve trades and most engineered to a price point - enjoy the music...