I propose that we accept the proposal
add incomplete-uni-patterns and incomplete-record-updates to -Wall
Both warnings are avoidable and considered bad style, which makes them appropriate to include in -Wall.
The reason that -Wincomplete-uni-patterns wasn't originally made part of -Wall was due to worries about noisiness (
https://ghc.haskell.org/trac/ghc/ticket/4905), but that's not a valid concern. -Wall is intentionally a moving target, if you want to stay Wall-clean you accept that new compiler releases may entail some work.
Basically I think this is a no-brainer.
Cheers
Simon