So many new cadets in the recent week.
They're probably different people.
Picard's Enterprise was built in a time of peace.
Compare it to the Enterprise from Yesterdays Enterprise built after 15 years at war with the Klingons.
Same outer dimensions. More fire-power, 9 thousand soldiers.
Voyager was Built during a time of war.
The Brg were always coming and every one knew the Cardassians were on the verge of doing something stupid.
When did they start building the intrepid class? When did they lay the keel for Voyager? How different would the same ship be if it was built during a time of peace and a time of war?