I’m glad they’re being careful about it. Solo snowball is important to let individuals carry, but it also needs limits to prevent situations where the only person having fun is the one snowballing.
In particular, old champions like Zed, Tryndamere, Master Yi, and Katarina, whose simple kits make them feast-or-famine, will need nerfs to their high-end snowball to keep them from becoming nigh-unstoppable stat-balls once ahead.
I also worry that enabling solo-carrying will backfire, making junglers gank top-laners even more to start the snowball rolling. Lee Sin, Elise, Shaco, and Olaf’s fast and healthy first clears would let them reach top lane first, and if they do and reliably gank, then slower or less-healthy junglers would have to just concede top lane unless that shutdown gold were really juicy.
And that’s another thing. Spreading shutdown gold meant that teams would try to shut down fed enemies, but if that gold becomes more solo, then getting the last hit will be important and contentious. What happens if the jungler decides that their laner doesn’t ‘deserve’ the comeback or is just selfish and steals the gold? It could lose the jungler the game, but people who do stuff like that usually don’t look that far ahead or care more about their pride.
Hope this works...