Speaker manufacturing is not rocket science
Actually, no. the other way around. Anyone can stuff a driver in a box and call it a speaker.
OTOH, John Dunlavy was asked why he got into speaker design, after a successful career in cutting edge works, like the spiral backed antenna and other things that for the longest time were restricted works, as in black.
His reply was ( I paraphrase), "because it is the most difficult thing I know of".
So it goes all the way from idjit boy cutting a hole in a box, to total brain stress and breakdown... where one is dealing with 6 branches of physics, all tied intimately together and at their absolute peaks.
Where the end user can or cannot understand the difference between the two efforts -- that is the key, here. To top it off, there is no guarantee that idjit boy cannot reach high level sound qualities (as realized by a majority) by cutting said hole in box, vs that of Mr science and his totally stressed out 6 branches of physics in his multi-million dollar labs. Mr science may work well in his lab, but still make speakers that no one wants to listen to.
So, does the designer of the speaker know what they are doing, and does the buyer of the speaker know what they are hearing? And a thousand variations of those two end markers.
Since human hearing is a very individual thing with individual wiring (as varied as intelligence) and built by the act of hearing and learning, we get to sets of variations in perception that means only the basics can be translated, re the idea of hearing and speculating that something sounds good or bad--and speaking such to others..
There are no absolutes, here, and such is not likely to ever effectively appear.
Arguing about any of that...is a serious waste of time. No chance at resolution. All the fundamental data points say that there is nothing to resolve, no matter how much any one of us may frown and grunt and try to force any of it into factualization..
Likened to atoms, where we can get a group consensus, in a loose way.. but not an absolute consensus on/in the individual. (each element of the periodic table requires a certain amount of atoms to group together for their atomic aspects to emerge, and the number of atoms required to group together and have that bulk elemental aspect set appear....is different for each element)