Support for Hamas does imply support for Palestine.
However, what the original commenter said is that supporting Palestine doesn’t imply supporting Hamas, which is true, it just implies an eclectic worldview in which you support a people against a genocide, but not their only means for resisting said genocide, and ignore facts (for example, by reading the 1988 Hamas charter, which is heavily cited by Western media, instead of the 2017 Hamas charter, which is much harder to find because it’s inconvenient for the West)