I don't see what a "pity bonus" would do.

Let's keep it simple. There's a plot for sale. 100 people bid on it, 1 ticket each. 99 lose. These 99 players each get one "pity."

Next plot comes up for sale. Those 99 people bid on it, 2 tickets each. What's different? 98 still lose and then those 98 get a second "pity."
Next plot comes up for sale. Those 98 people bid on it, 3 tickets each. What's different? etc etc

I don't see what this system would really do... other than box out newer players. Which I'm sure makes great business sense for SE. It is RNG. Deal with it. For whatever it is worth, I've lost my bid in every lottery. RNG is going to RNG.