I like tile cards, but - to be very honest - I still prefer the old entity card, especially for action elements like switches. It is not possible to see at once if I can change something by pressing the tile card button or not.
Looking forward to read your opinion.
Example of the demo page… The upper one is a light switch, the bottom one a sensor.
You’re right. But I think that was probably the idea - they’re just buttons that light up when you press them. 
I remember a dev discussion but could not find it anymore, as far as I remember they are neither happy…
For me it is part of your work when you design the dashboard.
I use Tile and Mushroom (for consistent design) and I took the time to set actions for all cards, because it was frustrating to have cards without actions.
For example for sensor, you can display the more info on press to have a view of the short term history.