@verius As they state on that page, if it is not onerous to remove trademarks then it is not unreasonable to ask for them to be removed.

However, that requires them to be easily removed.  Ubuntu as a distribution has hundreds of packages, expecting the branding to be removed from every single one that had it would, in my non-legal opinion, constitute an unreasonable request.

More importantly:
"However, it is unacceptable to use trademarks to restrict verbatim copying and redistribution of the whole distribution, or any part. "

"Or any part" is important - even if they've made a hack job of the packages, trademark cannot be used to prevent distribution of the distro.