Yes. He had replied to me that he doesn't accept sets. These speakers are sold as sets. The extra pair is offered for upgrading the sets. For instance from the 5.1 to 7.1 or more subwoofers.
I don't see these as being sold as set upgrades. Yes, one could by the T205 set, or I think they have another set with their thin sub, but many places do not even sell the sets, only the separates. KEF does not market them like that either. I was the one who sent in the T101, T301, and T301c. I asked Amir first if he wanted to review them, he said yes. These were not blindly dumped in his lap.
Based on Amir's tests, I returned the T301. I will try using the T101 as heights as they are so easy to mount, or maybe ebay them later. I'll do some REW on-wall measurements once I get them mounted.
If I were to do-over the wall-mounts, I think for LCR I'd try the new Focal 300s. For surrounds and rears, I think the Revel S16 looks promising or maybe the Chora on-wall. For heights, maybe the ELAC DOW4.2 or Dali on-wall. If the T101s don't work out well for heights, I'll likely try the OW4.2 next (as they are least expensive), then the Dali. None of those have measurements, so it's really just shooting in the dark or going by others' experiences. In any case, I gave up on flat speakers and went R3/R2c/Q350 for the 5.0 piece. Now i'm just looking for front heights to replace some atmos bouncy-speakers.