It's easy enough in my opinion to be honest. It's getting us used to being able to decipher what is said when speaking face to face in Polish when the other person will no doubt speak faster. I personally think it's quite easy to hear the difference between words too, easier than French I think, unless this is all just me XD
Well, there is no "am" in "I drink water and eat bread", and it is exactly as good of an answer as "I am drinking water and eating bread". 99% of Polish verbs don't show a difference between Present Simple and Present Continuous. The fact that the answers aren't exactly as you expected, doesn't make the course 'poor'.