Hell yeah.
Ida - an asteroid only 31km across - has its own satellite, called Dactyl. Should that be a planet? In fact Pluto doesn't have a satellite. Pluto and Charon orbit around a point which isn't within either body, making them a binary pair, rather than satellite/planet system.
If an astronaut to Mars took a leak, midway, out of the poop-chute, the blob of urine would form itself into a "hydrostatic equilbrium" (spheroid) and orbit the Sun. Would that be a planet?
Pluto is the lollygagger of the Solar System. Everyone was so desperate to find a 9th planet that when they found a big thing sort-of going round the Sun, they called it the 9th Planet automatically, without bothering to check. It's about time the apron strings were cut.