Go is missing both two new features Wirth introduced in Oberon compared to Modula (see section 5.2 of the referenced HOPL paper): type extension (i.e. inheritance) and type inclusion (no implicit coercion in Golang at all).
Taking a closer look there are only few similarities between Oberon and Go; both are garbage collected; Go uses the same separate receiver syntax element in method declarations as Oberon-2; and there is an intersection of keywords and also := appears, but the semantics are rather different.