These two products are very feature-complete (at least for my usage) and have as much attention as LastPass (with for example Tavis Ormandy working on both). They even publish information about their security model[2][3], which LastPass does not.
LastPass has proven repeatedly that it is not robust enough for storing passwords. Fewer or less important vulnerabilities reported does not equate to less security.
2: https://1password.com/files/1Password%20for%20Teams%20White%...
3: https://www.dashlane.com/download/Dashlane-Security-Whitepap...
Linux support
Their responses in that thread do not inspire confidence in the product for me, to put it mildly.