Never said I did a study, just my 2 cents.
The whole article is one person's account. As is my comment. There might be others with counter examples, but learning from one's experiences is what humans do.
Yep - Still running an Early 2011 Macbook pro just fine here - had a motherboard failure but was repaired by apple under an extended warranty for that particular issue. Other than that, no issues.
I am pretty sure that there are as many people with counter-examples.
E.g. I haven't had a Mac with issues since 2010. 2008: MacBook white: plastic starts discoloring, the rubber starts peeling. 2008: Mac Mini DVD drives gives the ghost after a year or so. 2009: MacBook 13" aluminium has broken DRAM SIMMs.