All decisions make a difference short term.
Try this real play recently.
I'm playing boxes 6 and 3rd base, max bets out.
Dealer gets a 4 up, box 5 gets two Aces, I get a pair of 9's and a 9/2 on 3rd base.
Player 5 splits aces drawing a 2 on the first split.
He incorrectly hits for a third card and is again incorrectly, due to the one card per split ace rule, given it. Another 2.
Other players question this.
PB says its OK, incorrectly.
Player draws a 3 at next hit, giving him A,2,2,3 against a 4.
He then incorrectly hits again, drawing a 7 and the other players at the table start complaining, at his play, not the dealers and PB's error.
The player stands and draws a 6 to his next split ace.
The dealer now realises his mistake and points out to the PB that he should only get one card per split Ace.
PB gets floorwalker. Floorwalker burns the incorrectly drawn 2,3,7 and 6.
Player hits for the second card to his second ace, getting an 8.
I split the 9's getting another 9, resplit and draw 7, 6, 8 on the three nines.
I double the 9/2 getting another 9.
The dealer turns over an 8 as his hole card and draws, the first ten in 11 cards, busting.
Nice.