You're right, I used to have a lot of instruments, but orchestral music has a peculiarity: many instruments are monophonic.
So if you want to make a chord, you put the fifth on the flute, the third on the oboe, the root on the clarinet, and the bassoon an octave lower.
And you do it again with the string section (unless they're in unison, but it won't be the same octave).
In short, it takes a lot more planning than just picking up a nice synth and slapping on a chord.
Anyway, thanks for your support and feedback :)