A lot of people don't want to or are unable to do placard spamming. However entering a lottery is near zero effort. This means that on highly populated servers the competition would drastically spike upwards due to the sheer ease of competing for a plot. It's not difficult to afford a cottage these days. Almost anyone without a house could enter the draw if it's a cottage.

And as I already said in another similar thread, players with multiple accounts or groups of people who want to share a house will have a higher chance of winning with a lottery system.

The current system needs serious improvement but expanding the influence of rng is not the way to do it. We need more houses. Not more dice rolls.