I guess because in skewing the design to prevent those things, it makes it less good at actually being a bench. It's less comfortable, you can't lean back on it

I guess because in skewing the design to prevent those things, it makes it less good at actually being a bench. It's less comfortable, you can't lean back on it and it's extremely ugly. Whether that's a worthwhile trade-off or not is another question, but it is a trade-off.