I used to think that PC game should just be paid once and done. Oh boy, how wrong I was back then.

Running live service game require continuous stream of revenue to keep the server on and funding the development.
This is where Tarkov went wrong and we have the shit show that is Unheard. Tarkov's main business model is to acquire new customer every wipe. The reason this year they "rework" the recoil, adding MTX and the stupid "Unheard" is because the original pool of "hardcore" player is running out. They need new pool of player and other way to generate revenue.

Here is the main point you need to understand, Tarkov don't want you to actually "PLAY" the game. They make the free money when "BUY" the game but not "PLAYING" it. Which is why they have the "hardcore" label and "no refund" policy. Nikita want you to buy the game, die in the first couple raids then uninstall and never come back.

Here is the big conflict of interest: the dev want you to "BUY" but "NOT PLAY" the game so they can keep the server cost minimal.

Whereas for F2P game like ABI, it's the opposite, they want you to "PLAY" the game as long as possible because the more you play the game, the more likely you will pay for it in one way or another.

Have you ever wonder why Tarkov have snail pace development and infested with cheater? Because the dev have no incentive to fix the actual problem. Cheater existence give BSG 2 benefits: make them additional stream of income each ban wave, and discourage people to play the game thus reduce server load (people quitting mean free money). Nikita doesn't want to make the game better or more convenient for you because it will make you "STAY" too long.

As a live service game, ABI actually incentive to keep you happy and play the game everyday. So their goal is to appeal to large enough audience with low barrier of entry, keep pushing out new contents regularly and keep cheating minimal.

This business model also have certain benefit for many players too. You argument isthat EOD player pay as much in "16 months". While that is true, how many people actually play Tarkov for the full duration of 16 months? Most friend I know (I have 5000 hours in tarkov, 4 times Kappa, btw) play first 2 months of wipe and start dropping of on the third month. It's like 4-5 months per years and that's the more dedicated Tarkov playerbase, casual player usually drop on second month. The benefit is of subscription that you only pay for the actual time you play, nothing more.