I too respectfully disagree with that statement. A short is a short, and a battery will not give a damn where the short is. As for the coil just popping .... well sometimes, but not always.
I used "factory
coils" for several years on a mechanical. They were called 510's, and 306'es, and even HH-357s back then. Used a lot of cartomizers on a mechanical, still do on occasion. "Low Resistance" was 1.5 - 2 Ohms.
Would I use a sub ohm factory coil on a mechanical??? NOT A CHANCE!!!!
In fact I won't do any type of sub ohm on a mechanical.