Comparing to forest or criticals, city is just very weak. At tournaments some characters are always buffed and an average character has 7k+ hp so that makes 50 heal very useless. Its second ability at 240 is good but its 55 point version makes me avoid these tiles.
Agreed, healing for 50 just isn’t enough 
I’ve heard previous suggestions set at a % of max health instead, such as healing one character for 5-10%, which would be much more attractive. Or, if it healed the entire team for ~5%.