1)
"Vayilonu ha'Am ... " has negative connotations. What else could they hav done?
1.
Da'as Zekenim: They should have consulted Moshe without complaining.
2)
Why did they complain against Moshe and not against Hashem?
1.
Oznayim la'Torah: Because it was Moshe who ordered them to travel
1
Like they did as they crossed the Yam-Suf