Hey thank you for your in depth review and comments! You're right, we had more plans to implement a slightly more complex mechanic into the game but our programmer got very sick shortly into development and was unable to work on it for 5 days so we did the best we could in the time we had left :(
As for the WebGL build we considered it but in testing we had some issues where it wouldn't display the glass shader properly and the glass and liquid looked solid. Since it's a major component of the game we figured it was best not to include that build since it wouldn't be a good representative of the games visuals. If we continue to develop this game further we'll probably look into using a different glass shader that works with WebGL.