No, #1119, jumpluff is based on a dandelion flower. Whimsicott is a cotton pokemon, which is a kind of bush. It isn't a "knockoff" at all. And they play completely different.

As for good and bad pokemon, people get mad about humanoid sauk/throh, forgetting about hitmonchan/Mr. Mime. People get mad about an ice cream cone (which is actually a fallen icicle that just happens to look like an ice cream cone), but forget about farfetch'd who is quite literally a walking meal (he's duck and leek, a common asian dish, and was meant to be a reference to that). People get mad about a bag of garbage and forget about a pile of excrement (muk is sewage). People get mad about a bunch of gears, but forget about a bunch of magnets and screws.

People need to stop getting so butthurt. Every generation had its hits and misses.