Initially i configured WPMU DEV>tools>whitelabel>footer text with custom text:
Managed with ? by Launchpad Legal Marketing
Then i installed and activated Branda>Admin Area>Admin Footer.
It seems that on WPMU plugin pages it brings both whitelabel anbd branda footer in, on all other simply branda.
IT woud be awesome if WPMU DEV whitelabel could set aside it is saw that branda was activated here.