Wyden seems to be ahead of the loop on this kind of stuff - is he normally this far ahead of the game? My understanding is that he is basically the only person in congress that actually bothers to understand about these kind of threats but reading this article it seems he is even further ahead than I would have expected.
It's a fun thought experiment - How many 'really important' topics are there in the US, where it would be worthwhile to have at least one Congress Critter who understands it really well?
Every MoC has some responsibility to a geographic constituency, and some topical specialization through committee assignments... Geography can create /some/ specialization through electoral incentives, but mostly in rural and resource extracting districts... (Such as Manchin and the coal industry... sigh.)
Many countries have plurinominal representatives. They are not elected for a geographic district since many groups may not be able to win a single district but they have people all across the country and they represent a fair % of the total population. (i.e. lgtb, cyclists, scientists, etc)
Plurinominal representatives are also a counter balance to gerrymandering tendencies.