I think Ted Theodore Logan appropriately summed up this film in one line:
"Dude. That did NOT go well."
This was an abomination, terribly conceived and dreadfully executed; and, as much as I hate to say it, it's all Alex Winter's and Keanu Reeves' fault.
If this movie was going to even partially work, Winter and Reeves had to summon the full-on ghosts of Bill & Ted. But they didn't. Instead, they phoned it in.
Most non-triumphant, dudes.