1) I think it's unlikely I'll do this. If playtesting proves it neccessary I'll increase the size of the troupe, but Hornets are gunned all out of proportion to their size, and larger troupes (five-strong would work out to 300pt) would give Falcon formations a serious run for their money as AT formations. +5cm speed, Scout, the ability to use Wraithgates (including the Storm Serpent gate), equal average AT per unit, and a slightly better save versus the disadvantages of being LV, and worse FF. Keeping formations small ensures they are used as recon units, even if they end up being particularly aggressive recon units.
Code:
Falcon AT vs. Hornet AT: Chance to Hit n Times
0 hits 1 hit 2 hits 3 hits
Falcon
Sust. @30cm .056 .278 .444 .222
@45cm .111 .444 .444 0
Single @65cm .167 .417 .333 .083
@80cm .250 .500 .250 0
Double @100cm .370 .444 .167 .019
@115cm .444 .444 .111 0
Hornet
Sust. @45cm .028 .278 .694 0
Single @85cm .111 .444 .444 0
Double @125cm .250 .500 .250 0
As you can see, Hornets simply outclass Falcons everywhere except the 3 hits column - even there it only matters at 30cm or less, and is offset by the 50% higher chance of doing two hits (.694 vs. .444). Larger formations would make them much scarier, as their durability would be enough to use that firepower in a more cavalier way.
2) There appears to be little background from Chroma on why the CoV is configured as it is. I suspect the Firestorm is there to differentiate it from just a larger group of Night Spinners. It needs a big price jump to accomadate the doubling of templates, but with only Night Spinners the question becomes why one would take a four-strong Spinner formation for 350pt (the cost without the Firestorm) over two three-strong formaitons at 175pt. Adding a secondary capability makes the formation different enough to justify. I agree the special rule is unneccesary.
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SG
Ghost's Paint Blog, where everything goes that isn't something else.