I believe Mr. Wells has had a shady past if I remember correctly.
Going to use the same 'ol stand by.....
"bits are only as good as the hands using them".
Cathedrals, A- frames and other big ports should be used with caution and correspond with the training of the horse rather than skip steps and create the illusion of furthered training by forcing a head set or trying to soften one.
I do not put these bits in the same category as a spade even though several tack catalogs/websites will tout any large port with a fancier cheek as a "spade". It would be great if all used the cathedrals and A-frames were used in the same manner but there is a reason for the braces, spoon, chains and reins. It is about balance and signal, not the pull. And it takes a lot of prep to get to that point. There was a reason for the series of bosals and bosalitas before just the spade is used, it is all prep to be able to pack the bridle properly without pulling-using the subtle signal as possible.
In my opinion, there is nothing wrong with the bits as long as the groundwork has been laid to use them rather than a shortcut.
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.