Or am I reading this wrong and this is just because they have to send your data to the brokers to process deletions?
You are reading it correctly.
If they only used your data to process deletions, it would read along the lines of “data shared with partners as necessary to provide (data deletion, etc) services.”
It should also normally be followed by a sentence that links to each partners privacy policies, and says that each partner complies with similar restrictions on using your data only for the same purposes listed in the earlier sentence.
All swearwords, all the time. Generally puns on the servers purpose.