I know Joanie a little bit (though she's never made me pancakes) - and I think what you argumentative tools are missing is that Joanie doesn't disparage those that train at altitude.
Her training is focused on racing. Running fast on the roads prepares her for road races. So for her, going to some altitude camp in the middle of nowhere and running on an Alter-G with a heart monitor and getting your VO2 checked all the time wouldn't prepare her for racing. It would prepare her to run on an Alter-G in the middle of nowhere. That stuff gets in the way. She strives for a balance between running and the rest of her life, and when that's balanced, she runs her best.
I think the criticism that she has embedded in there, and this is just my interpretation, isn't that people shouldn't train at altitude. It is that too many people think, "Oh, I can't train at altitude, I'll never be any good" or "Oh, I don't look anything like Paul Tergat, I can't be any good." People get bogged down and tripped up trying to design the perfect training plan with all these bells and whistles, when they really should just be out there doing what works for them and what's available for them.
That's what she did for her entire career and she has had a ton of success. That's all.