I highly disagree.
Construct2 for its regular updates is not even fitting for a 30 day trial.
Ppl should be free to try the product out and know what they are paying for first.
Scirra wont in no way get higher earnings from killing a limited free version that you cannot use for commercial project because you need more than 100 events to make a game.
You should make a detailed explanation of why you think "killing" the free version is a good idea and how is that improving the selling.
What would boost the selling in my opinion is making quality games with construct2 and get positive reviews by big companies or big web gaming communityes.
Indie communities would be a good start to publish reviews because that kind of comunity contains all kind of game developers and game lovers