You passed for the right reasons but unfortunately it is impossible to know if passing has a greater EV than calling until we actually put this kind've spot to the test running some kind of simulation.
I do think that some euchre hands like this are so obviously a pass that we don't actually need to "put it to the test" to "know" passing is the best play. For example, question 18 from my Advanced Euchre Quiz:
18) The score is 6-6. You are the dealer.
The upcard is
You have

,

,

,

,
Not only do we have the deck completely crushed if we pass with two guaranteed tricks in every suit, but we even have a powerful club loner should the action get back to us--a real possibility since we have all the cards.
I think your hand is more closer to the edge but I think it's a defensible pass.
Here's a couple more examples of hands I'll pass:
1) I'm the dealer and the upcard is the

and I have:
If we pick up we have R+9+a doubleton next Ace, a marginal hand but a must order under most circumstances, but this hand is the exception in my opinion. With all suits covered and approximately 2 tricks in every suit I think our hand has more power passing than calling especially against aggressive players who call Next weak.
2) I'm the dealer and the upcard is the
If we order up we have a marginal 3 suited, no off ace, L+2 hand. If we pass we have another euchre hand, I.E. all suits covered with approx 2 tricks in any suit, and we have a Next call in real trouble. I strongly suspect passing is the play here in most circumstances.