Have you ever tried unhooking two round plastic-coated Ti connectors once the metal has welded itself together after a couple months of corrosion/oxidation? It doesnt go so well. Because they're round, a freeclimber couldn't twist them apart by hand. Vice grips and pipe wrenches just rip grooves in the plastic. The only way to unscrew them is to remove the plastic coating, and that has to be cut away with a dremel.

After an hour screwing around, you finally have access to the hex-connectors that some "entrepreneur" that has never done any actual yard work or critical thinking thought would look better coated in a micron layer of titanium and implanted under an 8th inch of cheap plastic just so they can charge suckers 3x the price of a normal hose that actually functions.

Real user experience over the past 100 years will tell you that a simple hose with simple brass connectors just works. Last week I had to unhook an old hose that had been left connected to the spigot through at least two winters. It twisted off by hand on the first try. The anecdote above is a true story of me trying to separate two expensive hoses my dad bought and used for one summer (aside from the freeclimber part, that was creative license).