Yes, I think this is very much true.
It's undeniable that the Classic and Vertical AR systems share a commonality of "voicing", for lack of a better term - the same dominant gene that's present in the company's most successful and admirable systems seems to stay true, even when AR's engineering goal pivoted from wide dispersion in the far field to optimal imaging with a more predictable low frequency characteristic.
I'm a little old fashioned at this point, having a preference for the LST's approach, as opposed to the more "accurate" one of the AR-9, and it's offspring.
Interestingly, my very first pair of AR-9 systems was driven by a brand new Mac MC2205 amplifier, and it seemed a perfect match - at that time, it was the best reproduction that I'd ever heard, and going forward, seemed to be what the kids are now referring to as an "endgame system".
But 40 years later, I might be more inclined to have a pair of mint-condition LST systems over the mighty AR-9, if only because of its unmatched dispersion in a good-sized room. And in 2023, the AR-9's awesome low frequency response has finally been equaled - sophisticated powered subwoofers are more than capable, especially with room correction software running, should the LST's own LF output be found lacking (not likely).