I think this is a very good move, the game need to be more beginner friendly so anything can help!

Also I don't think there will be an "exploit" problem, indeed to get the 100 SPS delegation a player need to pay 10 bucks for the spell book anyways. Someone willing to start a bot farm will get better value for money buying 2nd hand accounts.
And even if they do buy the spell books, it will be good money for SPL and translate into a better development and marketing budget.