If we are investing because we always look forward on what this companies do then provably that we cannot sustain our investment especially if they decide to sell their asset and take profits. Since for sure that every action they made affect us. That's why better to invest according to your knowledge and also don't buy those hyping they made. Just be consistent on your own accumulation and don't try to catch anything they say since provably that they are just manipulating the mind of people.
As you said its really better for people to focus and keep on track on their target years since whatever those companies do for sure will not affect your investment and there's more good chances to earn more rather than buying those short time hype they made.
These things are already part of the investment risk because they or big companies will positively increase the price and also increase adoption which makes many people think positively and when talking about Bitcoin these things can attract many people and believe that Bitcoin is a very good investment.
bitcoin is a very good investment, so the people are believing rightly. When bitcoin is purchased by anyone, it adds to its market capital and the price increases, the only difference is that big companies enter the market with larger capital which makes the price to increase significantly. The success and adoption of bitcoin is driven by perception. When there is a positive perception, more people tends to jump into bitcoin. These big and successful companies buying bitcoin creates a very good perception in the minds of ongoing and potential investors and more investors tends enter the market and start accumulating bitcoin seeing them take the lead, it serves as an encouragement to investors and a buying signal to traders. These traders are driven by FOMO which still leaves them very vulnerable and prone to mistakes.
However, it can also be a risky thing especially for those who do not have in-depth knowledge about Bitcoin and also the risks that will be faced when it happens, I mean when big companies sell their holdings and what to do and what to anticipate if it happens because these things they must know because these things are common that can affect their psychology and can affect the market and also damage the strategy if they do not really study these things that make them panic and make the wrong decisions.
I believe you talk about the traders here. Their decisions are dependent on the trends and signals, they act on impulse and when those big companies likely sell their holdings, they get afraid that something might be going wrong and tend to exit the market too, most of them aren't so lucky and they sell in losses. I believe in persistence in accumulating bitcoin, bitcoin is decentralized, so the exit of any of such companies would only have little effect on bitcoin and possibly cause a downward price correction. Bitcoin always recovers in due time and its investors, especially those on a long-term plan always gets profitable in their investments.