That's what I like about my lid, I can adjust the water level much easily as the machine is filling, and not have to support the back-opening lid, and I would ordinarily not get as good of a view of the action during, either, that this lid design helps me with...
Wonder, too, how Hotpoint went from side-opening to the General Electric's rear-opening, though a few years after being bought-out by GE...
And my grandma had a very rare left-opening filter-flo with Hotpoint-like knobs; once drove by a discarded set--washer and dryer--more than 20-years-ago...
-- Dave