Yes, but not for S52 or S50, only S54 (because bottom end bearings were designed or manufactured poorly).
The reason is that at the time, and even still today, HTHS is not a headline value on oil packaging and in some cases can't even be found, consumers might have a hard time getting the correct data to make their decisions. Since a quality 60 weight oil is guaranteed to have a (very) high HTHS rating it's also assured of being in a very safe range. I somewhat doubt a 60 weight oil or a HTHS of over 5 cP is required for the S54 but it's considered "safe" by BMW and I'd not recommend against it when it's advised by the manufacturer.