...an angle grinder or a small dremel will get through anything.
Well, it's not like every other person on the street is carrying a high power angle grinder with a quality cutting wheel and fully charged high-capacity battery, risking jail (or worse) by creating as much noise as 47 cats in heat and putting on a fireworks display in public.
Even the Kryptonite Fahgettaboudit lock was picked by this youtube guy in like 15 seconds.
Interesting; got a link to that? The LPL took ~2 minutes to pick a Kryptonite New-U lock, seated at a comfortable work table with good light and the lock held at the optimum angle, using a custom disc detainer pick that cost more than a decent bicycle.