doh!
You make a really good point!
I never said I was a UX guy.
. . . hmm . . . OK
What they do is have the sidebar get collapsed like this:
and the thing at the bottom expands it.
So maybe collapsing the sidebar rather than removing it is a solution. Then if you know what the icons/colors are, you can use it without having it expanded.
Pretty much every site makes the home/icon at the upper left, and having the hamburger there seems wrong.