As a blackjack player. Basic strategy is indeed will give you a little bit decrease of house edge but still not enough to have a high accuracy win. Online casino continuous shuffling removes the possibility to have a high advantage against the casino. Basic strategy on Blackjack sometimes just a way to have a consistent decision making but removes the freedom of having some fun playing the game because you are playing in pattern and not through your decision. Sometimes I don’t follow basic strategy especially if I knew what’s all the cards being dealt already.
For example there’s already a lot of 10’s cards already dealt while my hand is 12 while dealer is 13 or 12. I usually hit instead of stand because there’s a high chance that low card is on the deck.
I can understand why those which may like blackjack may think the basic strategy is too restrictive as it basically tells you what to do each and every time, but at the end this is a matter of preference, as I suppose there are many gamblers out there which may like the challenge of using the basic strategy exactly as they should as they want to minimize the house edge they face, and in this way increase the amount of time they can gamble.
This is similar to what we see in video games, in which some players just want to get some fun, even if it is not the most efficient way to do things, while other players strive for perfection on each and every game.