It's not all bad - the bright side is that being under their radar means GW aren't as likely to touch those kits soon, which means we can all keep enjoying the glorious Hammerhead, Skyray and Devilfish models, which are still light-years ahead of the newer battlesuit kits as far as I'm concerned, for at least a little longer (I just wish I could say the same about the Forgeworld aircraft...).
Unfortunately as others have pointed out its largely a result of decisions made by the design studio. There's a process called Flanderization
that sometimes happens in media where a character gets certain traits or characteristics of theirs exaggerated over others exponentially across their lifetime until they start to become overwhelmingly dominant, and that's essentially what seems to have happened with the Tau (and most other 40k factions for that matter). A long time ago when the Tau were first introduced Battlesuits were essentially their thematic equivalent to Terminators or Eldar jetbikes - an iconic unit that was often one of the first things that people thought of when they thought 'Tau', but ultimately just one small part of a larger rounded out force. Sure, articles and background tended to glamorise them, but no more than, say, a squad of Space Marine Terminators would be.
However, they were a big pull, and a lot of enthusiasts of giant robot anime latched onto them, so GW decided to capitalise on that which has resulted in the feedback loop we're now in (the powerful rules the newer battlesuit models seem to have certainly helps too).
The good news then is that the trend might not last forever. There was mention of new vehicle models in the pipeline at Forgeworld the last time I checked, and I myself have some plans in that department too, so keep an eye out for them in the not too distant future.
Entil'zha wrote:Elite hammerhead crews are nabed up and put in suits now! Why can't we tank lovers get some real love for our tanks?
That's only if you let those sleazy battlesuit program recruiters ransack your cadre's gunship crews (and if said gunship crews buy into their smooth offer pitches and flashy demonstration videos).
In other words, don't let the GW writers boss you around - if you want elite Hammerhead crews piloting Hammerheads, you go right ahead and do that. And besides, between Longstrike and several characters on ATT (not least among them Tael's own Ryuu) there's still plenty of crack gunship aces rolling around in grav-tanks.