No, Ryze gets strong immediately at level 6 and can 1v1 (can actually 1v2 if the enemy jungler comes in) any champion at that point so 'playing full early' does not fix the solution; 'don't let him farm' isn't a solution either because he can use his ult and clear waves every 10 secs; and 'being babysit by your jungle' is already a cause for concern because no champ should even have to fall under that category just to shut them down. The solution is to nerf his numbers to make him weak early and strong late because that's the identity he's supposed to have; as he is, he's strong throughout the WHOLE game.
But Riot are just abandoning all that and decided to go the easy way to fix him, a re-work.
This whole paragraph taken straight from the re-work page is a good representation of his current position:
"But winrate doesn't tell the full story. The Rune Mage had three major problems: he's is too difficult to learn, too strong once you've mastered him, and too confusing to lane against for players who haven't memorized the nitty gritty details of Ryze's stacking and spell-combo gameplay. The Rune Mage is sometimes unbearably strong for reasons that aren't necessarily clear to his opponents. The windows of power we'd imagined for Ryze have, in practice, acted more as two-way mirrors of power. The knowledgeable Ryze player sees and understands what's going on with his kit, but other players see only darkness."
But Riot are just abandoning all that and decided to go the easy way to fix him, a re-work.
This whole paragraph taken straight from the re-work page is a good representation of his current position:
"But winrate doesn't tell the full story. The Rune Mage had three major problems: he's is too difficult to learn, too strong once you've mastered him, and too confusing to lane against for players who haven't memorized the nitty gritty details of Ryze's stacking and spell-combo gameplay. The Rune Mage is sometimes unbearably strong for reasons that aren't necessarily clear to his opponents. The windows of power we'd imagined for Ryze have, in practice, acted more as two-way mirrors of power. The knowledgeable Ryze player sees and understands what's going on with his kit, but other players see only darkness."