Why lavender admired Matilda and Hortensia?

Hortensia tells them about The Chokey, a tiny cupboard in Miss Trunchbull's quarters where children are punished by being forced to stand up straight for hours, since the door and walls are made of glass and nails. Hortensia has been locked in it six times for various pranks she has pulled on Miss Trunchbull. Lavender and Matilda are in awe of Hortensia's mastery of messing with the Trunchbull.

Lavender admired Matilda and horstensia because horstensia had been locked in the chokey 6 times because she played various pranks on miss truncbull and Matilda had punished her parents for being rude to her