Actually, that's not quite true. They still haven't locked down where in the genome the 'magus factor' is, and even clones of mages raised the long way don't reliably awaken. Hell, they haven't reliably found the metagenes that determine whether you'll be an orc, a human, an elf, or so on. They know it is genetic because of old-school heredity tests (elf+elf=elf or human, etc.), but they haven't been able to find where in the genome it is. For the magic gene, they believe it is genetic in nature due to a high tendency towards magic running in certain families, but as for a test to see if you will awaken? Not so much. Given how the emerged and the awakened are mutually exclusive things, they also believe that they are likely two different expressions of the same gene.
But yes, currently magic and technology don't get along too well. But that primarily has to do with the fact that we don't understand even a fraction of what there is to know about magic.