At full extension and with the column fully extended?
If it is 5 foot with just the legs extended, I guess there is a bit of leeway, but as a short**s, I often wonder how normal people get on with tripods. As I said, I don't like using them at full extension as they are least stable then, so if you are over 6 foot, you must need an angle finder!
The closed length is shown as 55cm, and there must be some overlap in the legs and the head to take into account too, so I'd still be wanting to see if there was any hidden surprises regarding the column being instrumental in achieving 5 foot.
As an afterthought I don't think I know any normal people
