Same old arguments. It's like when the 92-2002 lineup was touring and there was always complaints about 'It's not the real Foreigner', because Lou and Mick were the only originals, and there was no Dennis Elliott or Rick Wills on bass.
I'm betting that there were probably people bitching back during the '4' lineup years because Ed, Al and Ian were no longer in the band.
It. Never. Ends.
The "true fan/real fan/original fan" argument never ends either. All this bickering and arguing on the internets over bands/band members/fans, etc. It's partly what drives/drove me away from FB/message forums/websites. I love all these guys, past and present. When it comes down to it, they are all decent people and all are highly talented music professionals.
Both Lou and Mick have had their successes and mistakes (both professional and personal) over the years. It's a bummer to see personal differences discussed in the press (but it's not new - public bickering was going on in interviews as far back as 1987, if not before). However, I'm sure to each party, they feel justified in their grievances, just like any of us would. There's a lot that we as fans don't know and will probably never know, and most importantly - never need to know. 3 sides to every story and all that.
To borrow (and bastardize) a comment from Queen Elizabeth I - Just listen and enjoy the music - all the rest is a dispute over trifles.....