we need to do an analysis of the places Kuma sent the rest of the crew and decide whether he intended for them to get lost there (never to regroup as pirates) or for a specific reason.

first of all, Luffy: what were Kuma's expectations when he sent him to amazon land?
what about Zoro (he defiantly knew that peppora would be there, he sent her a few weeks ago), Sanji, Brook?
did he just want to spare their lives or was it part of his master plan?