You keep repeating this theory - that Apple will keep the butterfly kb going in parallel to the redesigned magic kb - and you cite a Phil Schiller statement as your evidence.
The truth is that there is absolutely no chance that Apple will continue to use the butterfly kb in any of its new laptops from this point forward. Quite apart from whether or not the latest iteration *is* fixed, it's a PR disaster that will be included alongside 2011 GPUs and iPhone 4 antennas in the list of well-known Apple hardware gaffs.
And having invested the effort to come up with a new kb design, why would Apple persist in keeping a flawed component in inventory that exposes them to both bads PR and continued repair liabilities when they have already solved the issue? They will find a way of putting the new kb in all their laptops and this will happen asap, as soon as new updated models are introduced in 2020. If I'm wrong you can return to this post and remind me
The Phil Schiller 'interview' was simply a PR puff piece featuriung Apple's head of marketing making PR-friendly statements about how they developed the new kb 'after listening to our Pro customers' / 'as teh result of lots of engineering effort' etc etc in order to not have to say outright that the butterfly kb was the failure that the press and the public all know it to be. It was an attempt to move on from the butterfly episode by the head of marketing without directly admitting it had been a failure, as is Marketing's way with these things. It was just a bit of PR. I feel you're simply flogging this line about Apple keeping the butterfly kb going in order to reassure yourself of your ownership of a 2019 butterfly kb. I understand this, but I think it's an emotional reaction that doesnt stand up to any kind of logical scrutiny.