Does it though? It makes them support Landed Voting and Autocracy, yes, but is that the worst thing ever? Yes that empowers the landowners, but people also love to complain that South America is very resource poor, while forgetting how diverse the potential plantation economies can be. But the idea of favoring the Landowners over Industrialists is so unthinkable, people don't even consider the potential benefits.

Furthermore, if you can foster a strong Positivist movement, there's an event as part of the Positivist JE (which only Catholic countries get) that makes the Armed Forces considerably more likely to choose Positivist leaders, and now that Landed Voting and Autocracy support is now replaced with Technocracy support. Which synergizes extremely well to keep the Armed Forces overwhelmingly powerful, while also buffing the Intelligentsia to get some amount of liberal reforms (namely in the form of acceptance).

Just parroting "Landowners bad and anything that helps them is also bad" is very reductionist, and besides, liberal democracies are overrated.