Instant cyclone is not so instant tbh
How long it will take you to get your instant cyclone? 10 seconds? If you are controlled/kited properly or even locked in bear form you can never get it at all.
Shapeshifting is druids weakest point. You know, other classes don't waste GCD for shapeshifting. You don't have to shapeshift to heal yourself as DK or Rogue. Or shaman and retri paladin for example. You don't have to shapeshift to cast your CC if you are not druid. And shapeshifting means losing energy, rage,mana, losing gcd, OOC procs, autoattacs, and it makes you vulnerable if you are locked out of form.
A lot of players hates and just don't understand druid shifting mechanics. A lot of players don't play feral druids on arena just because they hate shapeshifting. And you can't play feral druid without having to shapeshift all the time. It makes feral playstyle one of the most complicated out of all classes on arena.
Instant flightform is not OP. Its very good. But not the best. I'd love to trade it for 20% flying and grounded speed that paladins have. Other classes have similar utility - like waterwalking, slowfall, blink, iceblock, bubble, etc. And some of them can be usefull in raid encounters, making them more desirable in raid than druids. Who cares about outdoor activity after all? I'm not going to waste more than limited time of my life for gathering herbs and mining, you know.
And if you like gathering - why not to take advantages of druid yourself? Make yourself druid alt.