I was just looking at the Musa Germplasm Info page at
https://www.crop-diversity.org/mgis/ and the Taxonomy Browser page link
https://www.crop-diversity.org/mgis/taxonomy?focus=93
These show one Ice Cream accession under the Musa Bluggoe (Orinoco) subgroup and under the Musa Ney Mannan subgroup, 3 Ice Cream accessions & 2 Blue Java (known in the US as Ice cream) accessions.
So if the plant shows some degree of a blue/silver bloom on the fruit and/or leaves (??) then the name is probably correct. ... While there may be some mislabeled or fake labeled plants on the market, but going just on the name of 'Ice Cream' is NOT sufficient to knowing or determining what plant variety/accession you have bought.
Also, it is interesting to note under the Musa Bluggoe (Orinoco) there are 60 accessions listed. I believe, I have the 'apple' and hope to verify it when it fruits. I did notice a defiant apple flavor from the fruit of the mother plant I got 4 pups from.