Poc/apiimport2.0

I would draw your attention on this method which is duplicate with VariantGroupHelper
https://github.com/akeneo/MagentoConnectorBundle/compare/2.0...poc/apiimport2.0?expand=1#diff-6a49e8e7b32d7ee80a0267bf717b57f5R116
https://github.com/akeneo/MagentoConnectorBundle/blob/poc/apiimport2.0/Normalizer/VariantGroupHelper.php#L108

Those class share nothing else than this method, is it possible to create an abstract or something ?
In this method I search if a product is in a channel. A channel is describe by its root category owner. If a product category has the same root, so product is in the channel. So I don't really need the channel here, but that's the purpose of the method.