Not sure how you want me to respond to that. Are you getting that from a feel of yours or some statistical analysis of familiarity with polymarket in Spain? I don't think it matters much anyway, I bet most human beings don't know what polymarket is. But still, you think it warrants a conspiracy? To what end? None of this makes much sense to me.
I'd say based on vibes too, it seems to have gotten more common subject to talk about, also on TV, news and so on. It was virtually not talked about a year ago, compared to today.
Google Trends seems to agree too: https://trends.google.com/explore?q=polymarket&date=today%20...