I think bitcoin market is not controlled, bitcoin is hold by more people and market can't be controlled. Bitcoin is mined. Bitcoin should value more because there is limited supply and demand is high.
No one has 100% control over the markets, but it can definitely be controlled to a certain extent. Whales, news sites(crypto and non-crypto), certain personalities(crypto and non-crypto), and even the government, can affect the markets one way or another.
Though as time goes and liquidity gets better, it gets harder and harder to manipulate BTC's price.
I think the correct term is influence. I also think that Bitcoin market cannot be controlled by a single entity or group but the opinion of reputed and distinguised personality and groups can influence its price movement. Same way with whales' action. Just like what happened to the market last week. Someone had
. I believe this is not manipulation but rather a gamble if people who have weak hands will be shaken and thus this whale succeeds. Weak hands were influenced to sell their coins thinking that the price will crash further.