Okay. Not to sound harsh but let's break down your points.
1. "They should let everyone know that this game has high price tag." - There are literally 100s of Articles, Reddit topics, YouTube videos, etc. advising people that Raid is one of the more expensive mobile games out there. In fact, there are several articles entitled WHY YOU SHOULD NOT PLAY RAID SHADOW LEGENDS. Do you expect Plarium to advise you NOT to play their game???
2. "I try not to complain but being on a fixed income there is no way to afford this game." - I'm sorry but how is this a valid point? I could just as easily say that on my income I can't afford to vacation in Fiji. Should the airlines and resorts lower their prices to accommodate me?
3. "Nice package came out today, but with a price tag of $60, really?" - No one is forcing anyone to buy any of the offered packages. There are tons of FTP players who never spend a dime and still enjoy the game. "I looked at a nice BMW M5 Compitition the other day... but with a price tag of $150,000, really??" Same sceanrio... no one is forcing me to buy a $150,000 vehicle.
4. "Now they want us to start farming for these oils?" - I'm confused. Are you complaining about the addition of new content?
The bottom line is that this is a Free to Play game. This means that the developer must have some way to make the $$ it needs to pay its employees, maintain its servers, develop new content... you know... RUN A
BUSSINESS.
They keep this game Free to Play by selling packages. In the end there is no real expense to participate in this game. Every dime spent is because the player chooses to spend it.