Hi Mike, I agree with you.
Perhaps the other colleagues do not understand the complexity of an orchestral composition with voices included.
For example, in addition to making all the necessary MIDI adjustments, such as: control changes for certain parts of the song (volume, modulation, sustain, effects) to make it sound as dynamic as possible (including the ability to play difficult passages with sounds that have articulation) multitrack audio recording is also needed, for the following reasons.
1. make the final mix. this includes: volume, external effects, external equalization, external compression, normalization and mastering.
2. If in addition to the MIDI arrangement, external instruments are required (guitars, violins, brass, external synthesizer) and also male and female singers each singing their soloist part and then en bloc (3,4, or 6 voices)
then a multi-channel mixer / recorder keyboard with a minimum of 16 tracks is required with the functions described above, in addition to automation, and scene recording.
With such a keyboard, you don't need external software to record your best arrangement, no matter how complex.
this is just my opinion.
regards
Hans