I have used the technique before but as it has been given the thumbs up I will use it when I come to renew the petrol pipe rubber sections which is on the list of jobs to do. Well it will only leave one nearest the tank to do with petrol running up my arm.
To do the rearmost hose, have a 5/16" bolt handy, disconnect the hose from the pipe going forward and jam the bolt up it, then fit the new hose to the forward bit of pipe, pull the old hose (with bolt) off and quickly shove the new hose over the tank connector pipe.
But you knew that anyway, didn't you?
On the original subject, of course I use hose clamps and have done for 40 years! But I also use the slightly less efficient pipe blanks made from a union and a short piece of pipe, flattened in the vise and the end folded over, for cars with hard plastic "flexis" like Golf rears and of course, my own and many customers Goodrige hose equipped cars. They are also very usefull when replacing metal brake pipes!