A lot of trust in the government to only ban websites which are actively unhealthy for citizens and not websites which are critical or unfavorable to said government.
I do wonder, was Polymarket given a chance to prevent itself from being accessed/used from Spain? They seem to be a-okay with blocking usage from US states that have asked them to cease operation, so I don't see why they would try to actively defy countries that have (legally) asked them to not do business there?