Why is Shen getting nerfed patch after patch?

Shen is very difficult to play at low-elo, and i don't think Riot should nerf him just because of High-elo pro players. You see Pro-players actually have a competent team for the most part. In low elo, Shen's ult isn't very useful if your team doesn't know when to go in or your team is so squishy that your ult ends up being wasted. Shen is very reliant on team play and not so much a solo carry/lane winning champ. So if your team is bad, you're bad... If anything Shen needs buffs and a possible rework to compete with the current top-laner meta. Every current top-laner outpokes/farms Shen. He either needs a wave-clear or a ranged poke to be viable anymore. I suggest converting his W to a waveclear instead of a shield, or make it a shield that does damage ala tiamat/bami. Or make his Q throwable, 1st Q is a normal Q and tapping it twice throws it. Or give it a mechanic similar to Yasuo where you need to hit 3 times and then you can throw it.