Tanko is the delivery system and there's plenty of LI and MI with worse stats for those points in this game, so it's not all that bad. If you don't find that to work, then you don't and you do you, but for I find Tanko and Domaru complement each other decently.
Fair enough, although terms you've chosen were confusing. I don't think it's a problem with entire armies or supportware though. If anything, basic hackers taken solely for access to REMs and MMS2 (and occasionally to B2 program, depending on flashlight bot AVA) are worth every point already no matter who you go against, at least judging by my local meta. The problem comes from price and usefulness of specific hacking devices that are aimed to interact with enemy, in case you run into one who doesn't have anything worth hacking. Or (and this is important) the one who, say, takes KHDs as their specialists because 2 points extra over SO isn't that big even if they don't have targets. It's tempting to say "buff supportware so hackers are useful againt every army", but IMO it's not weak supportware that is the problem (which is actually okay), it's AHDs with them only being able to do one thing and often not better than high-caliber guns, lack of non-hackable specialists in some links in the game, lackluster general purpose programs of HD and even HD+ (very situational White Noise, often useless Lockpick, neutered Spotlight). But that is being discussed right in the thread next door. As for generic "Hi-tech vs Low-tech", this is completely another matter because if anything, existing issues have a lot more to do with more fundamental matters, such as unit pricing (although isn't it being addressed by CB?), EM vulnerability in a world where Ghazis and StarCo exist etc. Hacking issues are being pushed to the background under these circumstances.
Broadly speaking I'd like to see greater interaction of Hacking with communications and other systems more generally. But that might be beyond the scope of N3. Supportware seems like one of the only places where we see the advantages of quantronic integration actually affect the game, so to reinforce that point it is the logical place to start.
Well, I wouldn't say adding new dimension to lacking devices, specifically, is less likely than changes to already rather universally working supportware. Although some of those programs are pretty damn situational as well.