First, you should report your friends for spoofing. Secondly, low-power Pokemon (as most in these available raids) are only useful for collecting 100% Mon, and not for battling. I'm assuming more people are excited for battling and preparing for those future long fights for supremacy, than being astounded by catching never-to-be-used monsters.
Raid boss analysis
First i surprise with all level 2,3 and 4 raid bosses .. but then i realise. In my group have lots of friends who are shadowbanned and still playing but start spoofing in whole world for better raid availablity ... I was left alone .. surprised ..then finally understand that they all have enough candy but dont have high iv mons..which they can easily get if they spoof in are like NYC or SF ..in whole month they gathered so much high iv mons by raids and i am doing only tier 2 in my area ..and now i understand why this new raid bosses are more useful for player like me ...
It's just my point of view. Cz all bosses are easily available ..then previous ones..
Answers
Old gym system was made like a pyramid for higher level players...legendary and tyranitar raids were made for those in dense urban areas...Mewtwo has been easier to get in the residential area of an American city (Sprint and Starbucks gyms).
Well, regardless of all that, current advanced players/raiders latched onto soloing tier 3s. As a result they got better raid reward bundles and better Pokemon (Machamp/Ala/Gengar) and the freedom to raid at a wider choice of gyms. Making some tier 3s easier gives more players more freedom.
The worst is barely missing out on winning at a location you think will have an EX raid--meanwhile double phoners, air support accepters, etc end up winning more often than those that don't. Some discrepancies were smoothed out with some new raid bosses***I do a lot of higher tier raids, I've probably won and spent 100 or more fast TMs, maybe even 50 charged TMs--occasionally I'll still read on here..."Just got my first fast TM!" I say let more people get more stuff
That's right ... easily solo t3 raids ..and variations is always good .. hope they change the raid bosses every month .. i will be happy even if they repeated privous bosses ..for like rural player i dont have any legendaries ...so i have to play like that ..my best bet is eeevolution ..they same as legendaries except lower stats ...but easy to get and power up.. hope can 2 people will take down new tier 4 bosses ..