They were probably just wearing them wrong
And yeah, my 2007 MacBook still types flawlessly. It and the 2013 MBP I had for work a while ago really sold me on Apple's hardware. Disappointing.
All I have found with apple techs is they are better salesman at trying to gaslight you into thinking the problem is with you not their product.
Went to an independent shop and had the problem fixed for $100.
Fuck Apple.