All this discussion about the limitations of the free version and what it should or should not include, comes across to me as quite irrelevant if not even outright irritating.
A free version of a commercial product is by definition limited. When you list all the benefits of the free edition, I feel that the kind folks at Scirra are being amazingly generous.
If you want more, then for an attractive and reasonable yearly subscription you get a very advanced game engine providing hours of fun and late night entertainment.
The pleasure and satisfaction outweighs a million fold any downsides to paying a meager amount of money.