That doesn't make sense to me. So, if the ball is like 70 yards from the goal and there is 15 seconds left, we don't want everybody to acknowledge the inevitable and pack it in? Meanwhile, you could have a guy in a position to take a shot on goal who would do so if he knew the clock was about to expire, but because he doesn't know tries to work it for a better shot, or the opposite, taking bad shots because their could be five seconds left instead of a minute left to work for something better.
I'd rather guys know when it mattered so they can put the effort in when it mattered rather than being essentially fooled into putting in meaningless effort.
I do think that it is this kind of lack of precision in timekeeping and officiating that hurts the ability for the sport to catch on in the US, a country with no cultural connection to soccer.
That being said, we talk a lot about rule changes that would make the game more palatable for Americans, but the bottom line is there are a lot of countries that have a deep cultural connection to the sport. They've made the rules and if they are happy with them, there is probably a reason, and that is what counts. (of course that doesn't stop the rest of the world from messing with the rules of basketball, but I digress).