People need to learn to be wise and don't sell Bitcoin when different Altcoins are having techical problems. It will likely happen a lot more because we have a lot of shady Altcoins!
A very good recommendation: don't sell Bitcoin when a different Altcoin crashes!
After all, such crashes will only re- distribute coins from weak hands to strong hands (HODLers).
To be succesful means to understand Bitcoin is independent from Altcoins and to understand HODL.
I think there is no such pattern as that but it must be the opposite. It will be more acceptable that people will sell alts when they saw that btc crash first because alts are definitely going to follow. Just don't stress yourself too much as there will always be people that won't get it but better to focus only your own.