The changes to Imawal recently were slight, and I don't think many players harness the new ability to spawn walls (at least I haven't found a reason to yet). The statues thing is nice, but cosmetic, and I was expecting some kind of gameplay element surrounding them.
I think the best solution would be to make statues breakable by hitting them. Doing so would give you a layer of stoneskin, allowing interesting regen fighting in the endgame as a reward for careful use of IMAWAL in the early game.
WONAFYT works in a similar way, designed to create a pool of resources and then be converted. I use it all the time, and would like to use IMAWAL the same way.
It would also stop players from inadvertently blocking themselves in (with revenants, for instance).
Plants still turn into walls, monsters turn into statues which you can shatter.
What do people think?