When it comes to kites, bigger isn't always better because if that was the case, we'd all still be riding 25.5m Slingshot "Manchines" from back in the day.
In my opinion, any light wind kite has to be able to complete a full sine wave (S), bottom turn- top turn, downstroke-upstroke, or whatever you choose to call it,- or you're not going anywhere.
The kite has to respond thru a combination of power and turning speed before you sink, regardless of the size. Big kites generally have the power advantage, small kite has the speed advantage, but the one with both is the contender. From there, kiters will side with what they like better for their kind of riding.
Here's my example/ wording for light wind kiting-
Downstroke= Power Stroke (Obtained thru hard edging and sheeting in)
Upstroke= Speed Stroke (obtained thru not edging as hard, or going slightly towards the kite as it travels up to 12:00 and a little sheeting out to make it rise to quicker) Gaining speed like this could be called "shooting up under the kite" but it does create less line tension, and less ability to dive the kite HARD into Power Stroke #2. Those 2 turns of the kite are a key make it or break it point in ultra light wind kiting.
A big pig will never make those 2 key turns before you sink, and is therefore no better than any other kite in my opinion. Granted, in 12 or more knot winds, the big pig shouldn't really need both turns to "park and ride". In less wind than that, the bigger kite is even slower to turn and you'll end up sinking, so you may do better riding a smaller quicker pig.
I like old school riding and slower, more powerful kites in general, however my local conditions call for a quicker, more nimble kook dodger. From the look of the videos, the Infinity looks pretty quick for it's size, even without a lot of line tension, so I'm looking forward to trying it!