Betting on the point doesnt matter?

I am am new to gambling and im trying to learn craps as I had a little run on it and found it fun for once

I see people saying that you shouldnt bet on 6/8 if the point is on either or. however does this ultimately not matter because if the point is on 6 or 8 and its hits then the puck goes off then say it hits 7 you are safe with no payout, however say it was on 5 or 9 and then you hit a 6/8 then a 7 after before turning it off you would lose. so realistically it doesnt matter if you bet on the point or not unless im missing something? Also wouldnt it generally be safer to bet when the point is on 5-9 rather than 4 or 10 because then you have a higher chance of the puck turning off before a 7 rolls because 7 is the highest possibility in the die.