Yes, very good point worth mentioning.
One thing I have found is the hose tends to snag if you pull up on the extension wand to use the hose, and you make like a right angle at the hose, the hose collapses and the suction release valve kicks in, so what I do is place one hand round where the hose joins the connecter, and the other on the wand. NO fuss at all, second nature now, and it doesn't tip over when you use the hose, but follows you around, especially if you are using the hose from behind the cleaner.