It's just more convenient to travel/gig with modelers. Whether it's better sound wise depends on many other factors. You are 52 but you talk bullshit, including insults.
Your sentence "Rooms change sound, it's not rocket science and even racks don't manage to eliminate those problems with venue speakers are crucial factor." doesn't make sense.
You talk about bands in small venues with fixed FOH, or you talk about big touring bands with own equipment incl. FOH...
What are you talking about? What frustrations EQing an amp? Everything in racks, everything set. Stickers on knobs, etc. I'm talking about 1993, I had the opportunity to have a close look at the stage rig during their European tour.
I have Savage SE and Petrozza signature. Out of curiosity I bought 100W AE. I was surprised in a very positive way, it has something in it, what makes it a keeper.
Personally, I'm not very interested in boost pedals and I use a cheap Nux OD-3, which is more than enough for me. But I was quite impressed with the Maxon ST9 Pro+ in the video below. But, who knows, @killertone can extract good sound even from a can of ants...
These graphs are strange and certainly do not represent the reactive load input impedance in a correct way.
I know, TGP, but:
https://www.thegearpage.net/board/index.php?threads/how-well-does-it-reactive-load.2223180/...
I play 100W Jubilee through Engl 2x12 Vintage and it's really great. I like it more than through Marshall 4x12 G12 EVH.
Umm, it's without doubts excellent for thrash.