1-
The reason was that you couldn't win *out* of cover, that was the core issue, now that you can and will conisistently roll over enemy units while being in the open coupled with the ability for autowins when in cover (exaggeration but I'd say a good solid 70% of engagements if done properly will end in your favor due to reasons said before, mainly cost efficiency though.)
You gambled your chips on UC carrying your early game and AEC to shut down LVH or straight up skipping it into at guns to win the game with a cromwell, which wasnt effective at all.
As a sidenote, there is cash games having been played, not even in a single of those have I seen brits lose yet, which solidifies the meta as 5 IS because it will give you so much presence in the early game and the ability to push off your opponent with no problems whatsoever in terms of bleed, not that you need 5 IS, you'll do still better regardless.
2-
Easier, way so, but UKF has always been braindead and easy. so nothing really new.
3-
If you blob he outblobs you, if you spread out and try to cap the map with indvidual squads (which you *have* to do) then you lose on a one to one basis, sure you *could* go sniper, but you lose momentum still have to contend with an potenial UC an army thats larger then yours and a whole lot of lost momentum that's going to make you want to push aggressivly with the sniper to the point where it most likely ends up being caught up eventually because you absolutetly have to make up for the lost momentum.
4-
They have the best tech. (okw the worst because the forced light vehicles they pretty much have to go.)
-I could agree with this as a solution but i think they'd still be way to strong, they need to make them less of a unit that forces off everything by merely getting behind cover.
Dunno how replies work so whatever.