I think the severe contradiction here is, that "milonguero style" sounds quite masculine. And what she teaches is a feminine style, very sensitive, influenced by her yoga teaching, that is in my opinion far beyond the likely style and skills of "the old milongueros".
Well, this might be not the case, as the Spanish spoken version rather refers to the style.
"Estilo milonguero" is masculine because "milonguero" is the adjective describing the "estilo", and estilo is a masculine word.
So the first asssociation of native Spanish speakers like myself don't associate it to anything masculine.
If you already knew all of this, sorry... It's partly my desperation to be able to offer something to this conversation, too, as I opened it and at times it is just flying over my head..
On another trivial context:
I've been dancing for a little less than a year now, and yesterday I went to my second Milonga.
As I know many of the people there, it was a lot of fun!
On one hand I fully understand the position that dancers should wait until they are "good enough" to go to a Milonga, as Tango is so interactive among the couples dancing on the dance floor, too..
So if you don't control you may create a chaos on the whole dancefloor.
On the other side, there are many skills you can only practice there, as you all know.
As the number of practicas we have here is quite reduced, there is no alternative than going to Milongas from time to time. I try to choose well when and where I dance, and so far I didn't have any feeling that I disturbed anyone.
Also - if Tango wants more dancers, especially young ones, Tango must open a little bit and offer different types of Milongas. This unspoken "Karate system" with "I only have the yellow belt, so I'm not allowed to go social dancing yet" can be a turn off for many.
I'm not saying all Milongas have to transform intro practicas, not at all. But I think there should be a variation of Milongas with different ambiances than just this perfection and codes everywhere.
I really like that whole magic around it, but in smaller cities this leads to just seeing the same faces again and again because many people feel excluded.
In BA, this has happened long ago. I was at the known traditional Milongas and other ones in less popular neighborhoods with lots of hipster dancers with dreadlocks or looking like punkers. Only watching, I couldn't really dance yet.
I would like that variation here, too, to make Tango more popular.