Effectiveness/Strength of Point-Click Abilities

I've played many, MANY games where I lose to the simplest team compositions including champions that have linear kits and point-click abilities. I'm wondering why Riot hasn't done much to reduce the point-click abilities with the older champions simply because it is incredibly irritating when I am playing a champion that requires a decent amount of skill to play such as Lee Sin, Riven, etc. and I just get shut down by a simple point and click ability. I just played a game where the enemy team had a Garen, Annie, Soraka, Ashe, and AP Rengar. As you can see, the champions take little to no skill to perform well with. Garen needs to press Q, then E, then R on his villain or anyone with low HP to do a TON of damage. Annie's entire kit is merely point and click; I wouldn't even consider her W or R skillshots as they are extremely hard to miss. Soraka just needs to spam W on her teammates, Q and E when necessary, and R. I understand her Q and E require some skill to know when and where to place them, but simply spamming W is effortless and extremely effective. Ashe really only as 2 abilities, her W and her R, her Q is a damage booster after stacking it up, but her W cone is really hard to miss, and her R is easy to hit if the enemy has no mobility. AP Rengar only has to R, hop on a target and press W twice to do a TON of damage. He can also Q with Lich Bane for a good amount of damage, or E for a nice root if nobody is in the way. My team consisted of Riven, Cassiopeia, Lucian, Thresh, and Darius. Riven, Cassiopeia, Thresh, and in some cases, Lucian require a great deal of skill to perform well with. I've been practicing Riven for a long time (I know she has a point-click ability but it does not have the effectiveness/strength of a Garen R) and my friend has been practicing Thresh for a long time. Although we performed well, we were not able to do anything against their composition as they had simplistic kits that shut down our entire team. I find it unfair how someone can spend so much time practicing a champion to do well with them, just to get shut down by maybe a first time Rengar, Annie, or Garen. Another example is Veigar. Veigar has a point and click ability that can demolish an APC that can be blocked by spellshields and items. This ability scales with the enemy's ability power. For instance, Veigar can be losing lane to an Annie, and he can be 0-3. The more ability power Annie gets, the more deadlier Veigar's R becomes. Veigar can walk into lane, press R and do 1/2 to 3/4 of her health just because she has a lot more AP than him and he is 0-3. I find it absurd. In conclusion, Riot needs to limit the strength/effectiveness of point-click abilities as it is unfair to those who take practice for a long time to get good with a champion who requires skill.