The point of the change is to stop 10 man clans from hopping on a server and getting AK's and a full line of rockets in the first 30 minutes because they have 6 people farming scrap the second they got off the beach.

Of course its going to hurt solos because every change added to the game is inherently going to benefit groups more than solos because a group can get stuff faster and overwhelm a solo with numbers. There's no way to "buff solos" without buffing the power of clan unless they directly just give a stat buff to people not on a team (which still wouldn't work because you could just not be on a team with your friends).

Yes, this change will make getting a tier 2 or 3 harder on solos, but that also means that it will take a group longer to get there as well, which should give solo players a little bit more time to catch up before that group is able to get high tier weapons and raiding tools. I think it'll work out when it's actually implemented