Eat this:
https://github.com/FacialTurd/The-Powder-Toy/commits/master
lots of commits so shut up about devs not doing anything, devs do what they want.
Perhaps you could lead by example and implement some suggestions. I eagerly await some pull requests from you. There is nothing to stop you, or anyone else for that matter, from doing some development work.
If your suggestion hasn't been added yet, insults won't do anything to help change that.
In my case, if I feel inclined to work on Powder Toy, I tend to work on my own little fork, because some aspects of the official version went a bit horrendous during the C++ rewrite. However, on Saturday I did fix a crash freeze in the official version that has been around for 3 months.
Now, back on topic if you would be so kind...
they probably based this on a liquid and forgot to change the state and falldown.