Good points!
The technical issues are due to me not testing the game in itchio, which is a noobs mistake -_- being inside the itchio frame makes page focus behave differently as it it was standalone. Maybe I could add a link to play it outside the frame :)
The timer was a simple way to add some motivation for the player to keep going and hurry up, and give it a bit of tension.
All these flaws are the result of making the game in a hurry in one evening, and not testing properly in itchio :P