This is not true maybe is based on your own understanding, accepting that Bitcoin is not risk free is supposed to make any one make good investment decisions and manage their risk, there is no investment that is risk free in the world including Bitcoin investment, I don't see any wrong talking about it as not a risk free investment.
All investments do have risks because in this world there is no job that is free from risk so everyone must be able to understand the risks before doing certain jobs including investing in Bitcoin. But apart from all that, everyone also needs to know that the level of profit that can be obtained through Bitcoin investment is also not a little which can even beat the level of risk that exists in it.
For example, someone who has bought Bitcoin but he has not held it for long but has experienced a minus due to the price drop, but on the one hand the person can still maintain the Bitcoin he has for his future investment, it still cannot be considered a loss because the person is still able to manage the risk and his emotions not to let go of Bitcoin in conditions like the one I exemplified.