Well, the fact is that some of the greatest amps in history have EL84s - like Matchless, Vox. etc. Personally, I like big bottle tubes a whole lot more. I wish Mesa Boogie would have at least used 6V6s instead of EL84s but the fact is, they sound really good as they're designed. I'll tell you an EL84 amp only a fool would knock - the Friedman Pink Taco. It's loud, punchy, and sounds incredibly good. Actually, the Little Sister is also as good.
The problem is there are some common constraints these days. Primarily money and loudness. If you're stuck on 100w amps but don't play them at ear piercing volume then you're kind of preaching a faulty gospel. Believe me man, I love the sound of an EL34 quartet cranked so loud we'd start getting noise complaints from Mars. It's not just that they need to be played loud to sound good because some amps, like the 180 watt Diezel Herbert, sound great at low volume. It's that whatever you consider great sounding is significantly subjective.
Many people can't afford or get anywhere near the volume of a $3000, 100w head, so we settle for the little brother which may not be it but sounds really good and no one can tell from a recording. All I'm saying is the whole small tube/low wattage criticism overlooks some of the biggest tones in rock history.
I think most of us can agree that a mini rectifier or Mark V 25 sounds very good. Maybe it doesn't deliver chest thumping low end and knock salt shakers off the tables, but oh man does it sound awesome from the least to the greatest of it's volume limitation.
As for the Badlander 25, it's a killer sound and the only difference is the low end fullness that can only be had with big tubes. That's no big deal to me because I like the way it sounds. Someone suggested just getting a 50w or 100w Badlander, but the question then would be whether they could sound as good at lower volumes. I think they can sound pretty good but that rich goodness only comes with volume. At least with small bottles you can drive them and not harm kids in the next room.
By the way, the Friedman Little Sister is a totally stunning example of a cranked Marshall at much lower volume. If you ever played one, you'd really appreciate what it does as you increase the volume. It's a master quality amp in a small package.