Whoops, I somehow completely forgot that Kroot already count towards your Support Group limit. Nonetheless, I would still raise the limit to 3 per Cadre to mitigate the proposed loss of the AMHC. On a related note, I would leave the Hammerhead Support Group just as is (4+2 Hammerheads). I am strictly against cutting the Hammerhead Upgrade from them. With the upgrade, people could still simulate the AMHC by taking a Support Group of 6 Hammerheads for the same price.
As for the ML/GM dependancy: As far as I see it, there are enough ML units in the list to keep GM competetive. The rules change just made them more interdependant/synergistic and a bit more fragile. Seems very Tauish. Also, most of the ML units are quite good on there own, like Skyray with its long range AA. You don't need to cram otherwise useless ML into you army, you just need to be a bit more careful with both  your army composition and your play.
OnyxIf FW's became more effective, I could support a removal of the AMHC as long as there is
3 Support formations per Cadre.
HH's would have to retain an upgrade to 6 tanks (as would Stingrays) or the deals off... ÂÂ

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