If anything, there's too many plots available right now. My server has 27 non-FC plots that are vacant and it gets worse every lottery cycle. The system can't keep up. There's similar numbers on most servers (your own server has 30!).
Besides, even on "guaranteed bid" plots, people tend to miss out on bidding day 1. A LB41 (basically the best plot in the game) opened up about a week ago on my server and by the end of the first day it had less than 100 bids. By the end of the lottery? 500 bids. People were not waiting to see if it was a good idea to bid on this plot (it wasn't, 400+ bids lmao), they just didn't get around to bidding until later because most people do not religiously check open plots. A quicker system would only lead to more bids if people actually cared enough to check plots every single day, which is just not how most people play the game.