... Shein said Fifa has confirmed Zanzibar’s membership ...
...there is no confirmation so far”, said Shamhuna.
Letting in Zanzibar would mean having to let in Réunion.
Besides, Zanzibar would have to first become full members of CAF - they are associate members at present along with Réunion. Guadeloupe is also currently working with the FFF to allow them to get full CONCACAF membership (the 5 non-FIFA members are associate CONCACAF members). Membership of the continental confederation is necessary first before FIFA membership can follow.
UEFA actually has stricter rules than FIFA on membership. The continental rules actually take precedence, as a result of FIFA's insistence on being a membership of a continental body first. The main reason Gibraltar and Greenland are not members of FIFA is UEFA's strict admission rules. If UEFA changed their rules and let them in, FIFA would have to accept them based on their current regulations.
Zanzibar tried to apply for FIFA membership before in 2005. They were only associate CAF members at that time, and this is why FIFA rejected them. They considered them to be affiliates of the Tanzanian FA. The situation has not changed with respect to the Zanzibar FA being part of the Tanzania FA or with respect to Zanzibar's CAF membership. So FIFA cannot decide to let them in until something else happens first.
This story just seems to be another example of an African getting his 2 minutes of fame in the media, acting the big man, and shooting his mouth off with complete bullshit to make it seem like he is in charge and is to be respected.
However, underneath the bullshit, his intentions are admirable.