Its a misconceptions that most scotch is peated. The vast bulk of scotch available is unpeated. The article compares whiskies and tries to say that unpeated Bruichladdich and Tobermory have a perceptible pettiness, through the water. I haven't met anyone that can claim to detect peaty water in whisky. The article mentions Bruichladdich and Tobermory are certainly more robust whiskies. Differences will be due to production methods rather than apparent peat detected in the water. The Bruichladdich and Tobermory are both bottled at higher abv's and are nlt chill filtered. Glengoyne and Auchentoshan are more entry level whiskies, and gentle due to this. A huge factor in Auchentoshans gentle flavour will be due to triple distillation similar to Irish whiskey, however extremely uncommon in Scotland.
I could be wrong, but I would only argue that the characteristic smokey flavor inherent in the majority of Scotch whiskies is a result of the use of peated malt, in whatever percentage the individual distillery chooses to include in their final product. I expect most Scotch to express that flavor to some degree or another.
I mentioned Lowlands because they are known to not express that smokey flavor, as they apparently don't use peat in the malting process.
As to Auchentoshan being an 'entry level' product, I'd disagree; it's a well-regarded example of the Lowland style (of which there are very few choices) and available in bottlings of 12, 18, and 21 years, if one is interested in paying for that sort of thing. Of the Lowlands, I've only ever had Auchentoshen and Glenkinchie whiskies, and found them both to be delicious and refreshing in their brighter, more delicately sweet flavor profiles. Cheers!