Realtors regularly rank among the least trusted professions worldwide (near used car salespersons and members of congress). Stories like this one, won't help.
TLDR; a broker slipped a 40-year service agreement in on a sale.
What is required now? After years of scandal over commission collusion, the NAR MUST take a serious stand to sanction agents and brokers who collude on commissions and take part in underhanded dealing to ensnare home buyers.
Sadly, so far the NAR has largely been silent and denied wrongdoing.