Well, theres a difference between snipers and noob-tubers, and it is IMO a very big difference.
Many snipers are very good at what they do. You could even call them griefers. Being a successful sniper takes a lot of skill.
The noob-tube, by contrast, is a beginners tactic. The tube is an equaliser, helping newbs stand on a sort of equal footing with the pros.
Players grow into sniping, but grow out of noob-tubing, so I don't think you can compare them.
This actually helps the original poster's arguments. Personal opinions aside, what you are saying is that snipers take skill, and Splash is punishing those who are good at that by removing one hit kills, while noob tubing is still in, which certainly seems spammable right now. Taking from the last part of your argument, you seem to think Splash is lowering the skill ceiling while raising the skill floor.
IMO, I think Splash is raising the skill ceiling as well as the skill floor. They're making the game easy to pick up and forgiving towards newer players, while still offering ways for better gamers to gain advantages, such as manual smart.
And just a note, didn't a moderator just post somewhere that you guys shouldn't cry "troll?" Even if OP didn't ask a question tactfully, we still should be friendly. I've had plenty of times where someone misinterpreted the tone of a message; we should give him the benefit of the doubt.
Protip: If you think someone's a troll, here's a solution: don't respond. Easy as that. Definition of a troll is someone wishing to illicit a response, so the best way to counter-troll is to be unresponsive.