Amir
@amirm tests the gear he is sent. He does not routinely go out and buy components to test, certainly not rather expensive components like this, and when it is not something he is really interested in. It's his time and money, after all, not mine to dictate, no matter how wealthy I think he may be. Originally the plan IIRC was not to do listening tests, but a bunch of members complained, leading to this mess of "you listened but not the right way, with the right speakers, etc. etc. etc." It's easy to say "you should do this and that instead" when it is not your time and money at stake.
A lot of us own, or have owned, tube equipment. Including designers who have repeatedly explained the problems with this particular amplifier and presented much better examples, many including measurements, that represent good tube amplifier performance. If you have some good equipment, send it to Amir to test if you are curious. My perception is many people shooting the messenger without putting up anything of their own except snarky comments.
IME many inexpensive, generally smaller, speakers are not highly sensitive. They trade sensitivity for low-frequency response by padding the mid/tweeter drivers, wasting power and sensitivity for a more extended low end response.
I have no idea how much the low-power crowd is growing. A lot of things may come back into style driven by marketing and nostalgia. That does not mean they are any better the second time around.