I got pretty much the same reply when I emailed Tim Cook. They called back, took all of the info including the receipts for all of the machines that had keyboard issues. They called back about a week later and pretty much said, "gosh, don't know what to say, we haven't heard anything about KB issues on the new 2018 -- Not sure what to tell you."
I don't think that they would release the new Air with the current KB if they were working on a redesign anytime soon.
Someone recommended getting a 2017 as those are at least covered for four years under the keyboard program. Or get a 2015 mint MBP.
I am blown away that this company is not fixing this issue...or, even acknowledging it. Do other people just deal with a repeating key and not report it? It just gets worse to the point of not being able to write.
I am blown away that all 5 of my brand new 2018 MBP's have all had the same issue within a week of owning them. Always starts with the "e" and then migrates to the "T, R, D," keys.