enough amplifier power

Right there with you.   More power = better !
Owned so many amps, receivers over the past 30+ years. No substitute for power. 
 Heard so much bReaking up of the program material, distorted mids, etc.  Dont even bother w Any less than 250-300. Wpc.    

Hard to tell which way you really are going with this so I will just say your example supports what I keep repeating, the most important thing is speaker sensitivity. Your flea watt amp probably sounds absolutely captivating. That is the calling card of OTL. But low power absolutely calls for high sensitivity speakers. 

Most people, if they would simply do as I recommend and avoid anything under 92dB will then be able to enjoy great sound from a wide selection of amps with anywhere from 20 watts on up. If they go to 98dB then even a flea watt amp like yours will still deliver a clean 101dB on peaks, and still be as you say beautifully immediate.  

I think you are right about people not noticing. So many speakers out there are 88dB, which is freaking ridiculous, these do need hundreds of watts. No wonder these same people are always opining on the importance of finding the right amp to match. They could use yours and be happy but they would have to ditch their Wilsons and Magicos for tenth the price Tekton and Klipsch, something few who have drank that Cool-Aide are likely ever to do.

It depends what you are trying to do. Play chamber music late at night or trying to make the neighbors move? I ran a 350 wpc amp for over 2 decades, Just sold my 400 wpc amp, and I still have a good 200 wpc amp on hand but most of my systems now are 25 or 35 wpc. It's more than enough for me. 

Mine were fine at 100 the 200 then 300. All good. Don't worry about it.