Instead of just ditching the FH4 Playlist without doing anything about the achievements tied to them, i think it would be a good idea to change the requirements for them instead so the game can still be completed. a few games have done this in the past, GTA 5, Rocket League, I can go on. you can change it to something such as winning races with specific cars, doing a specific race event with X number of laps, i could give hundreds of suggestions of what they could change it to instead of just making 5 achievements no longer available to get
Yea i feel this one as fh4 i never did anything other than drift around in free roam… but now ill never unlock this drift club 2.0 achievement and the link or whatever it was that u acquire from completing it 
sad to see… cuz some ppl actually enjoy playing older titles. Nice change up and good to always go back to ur original roots… but idk if i was a dev i would have considered this. Should always be entitled to earn ALL achievements for the game without some dlc purchase and or etc. of the sort. Offline acquirable all that… they really needa stop ripping the better games out our hands once they release another version of the game that feels more copy and pasted the more titles that are released. 
priorities ig.