When we have a strong tie to a training method, like we do to a style of MA, it is very natural to not like when that method is questioned.
Especially when we know, first hand, that it works.
I can't put a number on how many times I defend "iron skills" on this forum OR who many times I defend "weight training" on here too, !
LOL !
Fact is that we tend to get so caught up in defending out point that we fail to see the other persons.
IF posted that, outside what he viewed that HS training was good for, that there were better ways to develop leg strength and he was right, no matter how irrelevant that was to the discussion.
You posted that HS training strengthens and develops the hip flexors, but while they are involved and important in regards to flexibility, they are NOT primary movers nor are they developed via static horse stance training.
Then it went from the benefits of horse stance to ARE the hip flexors developed in a static horse stance even though the arguments is irrelevant to whether horse stance training has benefits.