The difference is that people expected their relationship with Triplebyte to be private, and not a public matter. A lot of people do not even want the fact that they're on the platform to be public. Like it or not there's a cultural expectation of "people have Linkedin all the time even when they're not necessarily job hunting," a level of leniency and acceptance that does not apply to Triplebyte (which is currently viewed as a "I want to get a job now" website)
I have had a really positive experience with Triplebyte so far but hope your team can understand the root of what is bothering people about this decision.