They were honest, it's about budget, not any stance on disinformation/hate speech. Here's the lede from the linked article:
DW will close around half of its accounts on the social media platform X as part of its current budget reductions. The decision is linked to savings requirements and broader adjustments to DW’s digital offerings.
There's a reason they only put the financials amon there, because that's the part they care about. The awful shit that twitter supports is just a paint job they're throwing on because it no longer makes financial sense to be as active on the Nazi site, which is why it comes after 3 paragraphs discussing the financial aspect.