The keyboard issues were fixed in the 2018 MacBook Pros.
And there is no systemic issues with the security chips. We have entire floors of developers using MacBook Pros and no one has had “frequent crashes” from the T2 chip.
I know it tends to be more preference, but even on the 2018 MacBook Pros I find the keyboards terrible. Dust and spill resistant sure, slightly improved tactile response yes, but unlike my 2015 MacBook Pro my fingers seem to get strained and sore from the butterfly keyboards. I like travel in my keys.
I had the same experience with the new MacBooks - tired fingers. Ended up switching to a Dell XPS. That might not be an option for many, but I was pleasantly surprised by how nice the keyboard feels. I would've gladly paid Apple for an updated version of the 2012-2015 (2016?) version, but ultimately had to vote with my feet.