I doubt if there is anything wrong. Dishwashers are designed to retain an inch or so of water in the sump to prevent the motor shaft seal from drying out.
On the older machines the standing water level is very obvious, but on newer machines they designed the sumps deeper so the standing water is not visible.
During normal operation the normal water level is up nearly to be top of the base pan. If the drain line were stopped up their would be 3 to 4 inches of water in the bottom of the machine.
Also, a word of caution. Be extremely careful when feeling around in the sumps as it is common to find pieces of broken glass stuck in the sumps.
Do not remove any of the screws in the bottom of the sump. The main seal and pump/motor mount is accessed by removing some screws there. If you happen to loosen the wrong screws you would run the risk of the pump/motor assembly dropping a bit and all the water will spill out on the floor. To correct that you would have to get a new main seal and disassemble the whole drive mechanism to replace it.