I'm glad you enjoyed Line Bender!
You bring up a good point that many others have shared as well. I'm not so certain about the pause function because it may affect the pace of the game, but you are certainly correct that many players will benefit from an optional way of making it easier. I'd really like to come up with a way to make the game easier for some players, without making them feel like they were robbed of a chance to discover a solution.
That's what I will be pondering for the next few days. Thanks for sharing your feedback!