They don't need a rework.
There are players playing them.
There's millions of players in the game, but let's say there's only 1.000.000 active players. A-Sol's 1% pick rate means that 10.000 players play him, but LoL doesn't have just 1 mil players, it has more, so that 1% is quite a decent amount of players.
Taliyah is played jungle and mid almost equally, and totals a 3% play rate between the two roles, so she's picked quite respectably.
Taliyah, A-Sol and others who are low pick rate despite their high win rate have some in common, they don't really feel like they are the carry, and for good reason, they have as main win condition winning the other 2 lanes more than their own.
Then let's look at the most played champs, Zed, Yasuo, Lee Sin, Irelia. All flashy champs who make it clear that they are the ones feeding the enemy lane....I mean that they are the ones that carry the game, they get the big scores, flashy kills, etc.
People want to feel special, they want to feel important, but just like enchanter supports who barely anyone outside of mains play when not in metas like Ardent meta, A-Sol and Taliyah boost the team, not their own score card, which is exactly what the vast majority of players don't want to, they want those big scores.
Just because there's a stupid "I'm the carry" mentality doesn't mean champions that don't fit it need reworks. Those champions are hella strong, and their win rates show it, but they aren't as easy as Zed to play, nor flashy. People who want to put effort in learning a "hard to play champ" want to feel the empowerement of the score card, not just to win, but to win being the one who 1v9. Many don't even want to let themselves carried for a win, would rather troll than to win just because they aren't the carry.