Bad framing. Consider instead this: flight search platforms are like queue management software in a public service, they have no authority over the rules.
They organize and present information but do not set visa or travel document requirements.
Legal requirements for travel are determined by sovereign nations, not by a user interface.
If Indonesia changes its visa policies, the platform adapts, but has no power over this fundamental decision.
Imagine a "information" sign at the airport; it does not set aviation regulations, it displays them.