They are rational. If anything, they’re subjective. My perspective versus yours in terms of interesting and fun.
US and Russia may have bigger trees to progress through, but they also have more premiums vehicles within each rank. Premiums that didn’t go on sale hence the frustration with this pack sale. Germany less so but still more than others.
“Best 11.7 line-up? USA if you have aircraft”. I would disagree, as I play 11.3 without aircraft and do just fine. This would be an example of subjectivity.
With one-death air battles, I’m not sure what your point is. Kit and performance still very much matter here. If your best aircraft is a whole BR lower than what it will get matched with and only brings in two or four Aim-9Ls (or two R-60MKs) and a mid-tier radar at best against 9Ms, Aim-7Ms, Aim-54s, R-73s, Python 3s, etc; sure a good player might make it work but those are not the majority of the player base (no offense to y’all, I’m not great myself).
These “less-played” nations are played less, not because people don’t know anything about them, but because they are just not that interesting and you can experience most of what they have to offer in the big three. As I said in my first reply, most of the vehicles in these nations can be found in the major three. How many nations have Shermans? A Panzer IV? A Mig-17/19/21? A F4 Corsair or P-51 or BF-109? An M48, Panther, or T-34?
No offense, but if you removed the copy and paste vehicles, some nations will have…probably less than 20-30 vehicles across both air and ground. Like the Finnish tree in Sweden wouldn’t exist anymore as it’s just Russian, American, and I think it has a Leopard so German vehicles.
If you enjoy them, cool. But if we are going to use this argument that “Gaijin might be trying to get more people to play these less-played nations” then we are acknowledging there’s a reason why and it isn’t because people don’t know about them. And how the biggest/most important sale that only targets them would frustrate some people.
Thinking about it now, I don’t think I’ve seen more than 6 KF-41s since it’s addition during my top-tier battles. An “interesting” vehicle Gaijin added to Italy under the Hungarian sub-tree in order to offer an attractive top prize for them and incentivize players to play Italy; that went on to only to just anger the player base because realistically it should’ve just gone to Germany.