No. Shaking down old customers to be able to use any version of old features in new patches is not customer friendly. It's the opposite.
Neighboring AI being weak in tech cost is irrelevant. What matters is that if you pay for DLC, you get to shave 1000's of monarch points of cost in each category across a game, even after you factor development investment.
The message the game sends is that if you buy DLC, you can replicate a decent 1.15 westernization timing. If you don't buy DLC, here have less monarch points. It is a "pay $$$ for in-game resources, some of which you used to have access to for owning the base game" model. SP or not, that's dirty money.
That's not okay "because some AI have less monarch points also". It's a substantial balance change and nerf to half the board *contingent solely on the presence of DLC* vs not.
We're not whining about DLC practice any more than you're whining about criticism. It's just dirty business practice to shake down customers for access to stuff in new versions after patching out the older versions of it alongside bugfixes. Not as dirty as blatantly false advertising about cross platform MP compatibility mind you, but still dirty.
So I don't argue that the DLCs need restructuring/bundling whatsoever.
But what you say here confuses me. First you are talking about westernization. In order to westernize you need to have a western neighbour. Before that you just had a flat penalty to tech cost.
Now if you have a western neighbour the institutions are gonna spread to you pretty fast, and you don't have to pay monarch points for it. You will probably get them like maximum of 20 years later or so.
And 20 years is like 20% tech cost which was eastern tech group i believe. And in a lot of cases you just didn't bother westernizing as them.
And later institutions aregetting around the world really fast.
Then you say it is a balance change, but ignore what balance is mostly about: you and your most direct neighbours. Like I said, if everyone pays more, nobody pays more.
Also ith institution spread etc. I would argue that you probably pay less monarch points for teching nowadays then back when westerniation was a thing. Keep in mind that you have to pay mp for westernization. But don't quote me on that as I have no direct comparison on hand.
And yes, not owning DLCs restricts the play style. But: you don't want to invest money to gain access to playstyle XYZ, then play without it.
Does that sound familiar? Oh yes right pretty much everything you pay for has exactly the same concept: pay for it and get access to it or don't. Doesn't matter if it's gaming, clothes, food, ...
It is business. And a business needs to be profitable in order to stay in business. Otherwise it's out of business fast.
And just to reinforce my message: I agree with the restructuring/bundling whatever of the DLCs. But just making it free is not reasonable but just complaining: "Why do i have to pay money for something i want to enjoy?".
(And yes the last point was a little bit controvers and extreme, I appologize for that. But I had to cut it there due to time contraints.)