I think the generated modification spam is just a byproduct of how much Engineers has been modified over time. Rolls used to be completely random, it would make no sense to be able to queue up rolls, you might overwrite your good roll with the right experimental with something trash.
It also took hours to gather the materials in the first place (for even a single G5 roll), so, not much point to saving 15 seconds on all three of the rolls you got this week.
Now it is more progressive, repeatedly redoing rolls is beneficial rather than a sign you failed on the final layer of RNG, but the old design is still there in a lot of ways. The general UI hasnt changed much in all this time, except for the bare minimum changes (rip the roulette wheel)
All of that to say that this probably isn't a deliberate design decision Frontier made because they thought clicking the same button over and over was excellent game design. It could do with being changed. Probably won't be though, they've had years to change it.
It also took hours to gather the materials in the first place (for even a single G5 roll), so, not much point to saving 15 seconds on all three of the rolls you got this week.
Now it is more progressive, repeatedly redoing rolls is beneficial rather than a sign you failed on the final layer of RNG, but the old design is still there in a lot of ways. The general UI hasnt changed much in all this time, except for the bare minimum changes (rip the roulette wheel)
All of that to say that this probably isn't a deliberate design decision Frontier made because they thought clicking the same button over and over was excellent game design. It could do with being changed. Probably won't be though, they've had years to change it.