I agree completely however the fact Spark chose to stick with yahoo for so long and after so many issues reflects badly on them and doesn't dissolve them from all fault.
I'm glad to see the migration is taking place, however the time taken to do so was poor.
And being blocked for suggesting moving away from yahoo years ago has left a bad taste in my mouth about them ever since.
Yet here I am signing up to a 1 year contract with them... lol