Nope, they're pulling your leg. I changed my stock BT-21's myself- manually.
I use the Harbor Freight tire changer. It bolts to the floor, stands about 3' tall. I remove the stem out of the tire valve, let the air out. Down low on the tire changer, is a manual bead breaker. Once the tire's bead is broken down off the rim, you can securely mount the wheel to the changer. Using No-Mar tool, lubricant around the rim/bead, and a bead locker tool (keeps the tire from turning on the rim,) I manually separate the tire from the rim. Once that's done, I then repeat the process for the other side, which completely removes the tire from the wheel.
Once the new tire has been mounted, air up, stem valve replaced, I then static balance it on my HF balancer, using gravity to find the heavy point.
Not a big deal to do, never have had a problem with the balance.
I have had some experiences with certain tire brands' sidewalls that are really stiff being difficult to manually break down, though. Sometimes helps to have an assistant...