FWIW, the accounts I've seen of the zip tie method usually use at least twice that many zip ties.
I can't imagine how it would save any time or effort. If you have any idea at all what you're doing with tire irons, you can have the whole job done long before someone futzing with zip ties will have the tire off.
Same with a No Mar or similar tire changers -- they're very fast once you finally get the wheel clamped into place, but it usually takes 20 minutes of farting around with the clamps (and the wheel popping out over and over and over and over) before you can commence.
This goes a little faster if you only work on bikes where the wheel diameter is the same. On bikes with different front and rear diameters, there's a good chance someone with a little tire iron experience will be done while the No-Mar team is still cursing at the rim clamps.
2002 Suzuki DL1000 V-Strom, Dark Metallic Space Blue
1983 Suzuki GS850G, Cosmic Blue
2005 KLR685, Aztec Red - Turd II.2, the ReReTurdening