For example, Martin Audio W8VDQ combines line array and differential dispersion technologies to provide an advanced solution to the requirement of even coverage over wide angles and throw distances. Short throw horizontal dispersion is 120º, narrowing to 100º as throw increases. Let's see what you have to say, there is also QSC KLA, L Acoustics Kiva, Jbl VRX etc
This sounded like marketing material copy/pasted. If so, it should be taken with a large measure of salt.
You have access to some really seasoned and well-educated pros on this forum, but your tone is coming across (to me, at least) as challenging and dismissive of their expertise. If you actually want to learn, you have to be open…genuinely open… to the possibility that your preconceptions are wrong. If you don’t want to learn, then you probably don’t need to ask questions here.
PS - sincere thanks to the many professionals here who share their hard-won knowledge with people like me who know just enough to be dangerous and are liable to fall into the Dunning-Kruger trap.