Ahh interesting. I've had mixed feedback (outside of game jam) on clearing the actions so far. Some people have used it to their advantage, if the current one already matches you get a bit of extra time to place the next one. I might look at adding an auto-clear toggle so players can decide themselves.
And yeah I built it to be something I could just keep building on if I wanted. The loop system is entirely independent so I could even pull that out and make something else with it.