Technology has been at the centre of so many musical innovations. People have asked the same thing about every single one of them. They question the creation of the synthesiser. They questioned the electrification of the guitar. They questioned the various stages of the evolution of the piano. I suspect the question was asked when log drummers first thought to stretch animal skin over a wooden shell.
I think you lose something when what is learned using previous music tech is bypassed, and then forgotten. For musicians at the transition, you carry with you the knowledge of that former tech. It bleeds from one tech to the other. We try to apply previous knowledge and experience using that new tech and gradually new methodologies emerge, and tools are used at specific times for specific purposes. Often it is survival of the fittest, but sometimes we keep using both.
Where we do lose is when laziness dominates, where convenience wins over art.
Where we collectively lose out is in the new generation who only know that new tech and don’t bother to learn the lessons of previous tech. I don’t know any guitarists who bothered learning the lute, for example... but I know many who play both acoustic guitar and the electric guitar.. which is one of those few examples where both old and new remain popular... largely due to the instruments and applications being quite different and complimentary. The closer the tech the more likely the survivor (not always the new tech) will replace the old tech, not sit beside it.
Of course iPads etc are general tech that augment the working environment, or have some sort of music making application often based on leveraging someone else’s knowledge or skills. For example a loop based sequencer. Such apps allow even unskilled (though sometimes inspired) users to create music that their lack of musical skill in other arenas just wouldn’t allow. It is here, more than in other ways, that such music tech provides the possibility of creating something reasonable based upon nothing other than the creator’s taste. They need no skill at all. That is an issue in science almost as much as music these days, though I will grant you that the contrast in the music arena is much more stark.
No amount of telling people that they are best served by learning at least the fundamentals will encourage them to spend time on something that feels glacial and distant in terms of the results versus effort. In this day and age of speed and convenience, skill development is an under-represented choice or outcome.
Just saying