Not just taste, RCW. Frankly, I don't understand much of that post.
Presumably, by "heats faster" Sankum is referring to the fact there is no wait for a burner to heat up. At any particular setting, a pot will heat the same whether it sits on a gas burner or an electric one.
And I would really like to understand how it's easier to clean an electric stove than a gas stove?
Regarding the reference to different tastes. Only time that should happen is if you're cooking on an open fire, because the fuel (wood, charcoal, etc.) itself imparts flavors to the food.
But cooking on a gas/electric stove should have no affect on taste unless you cook the food differently. That is, maybe you cooked it medium or well done on the electric stove, and are now cooking rare or medium rare on the gas.
It isn't the fuel source that's doing that though.
The major benefit to gas is its responsiveness. If you turn it up or down the btu output changes immediately. With electricity there is always a wait period for the burner, itself, to cool down or heat up. This has a distinct affect on how you cook.
Julia Child is the only one I know who actually preferred electricity. But she worked with a minimum of 9 burners, so had room to move her pots and pans around without waiting on the burner's reaction speed.
Related to responsiveness is the degree to which you can adjust heat settings. Gas has a continuous range, from barely more than pilot light to full blast. With electricity you're stuck on the pre-installed settings.