I really wish this myth would die, because its not (and has never been) true. It was started because someone on reddit looked at one or 2 goblins, noticed that they don't have 15 AC and 7 HP and decided that because a goblin in tabletop has 2d6 hp, of which the average is 7 and has 15 AC, that the reason must be because Larian changed Goblins because "missing is not fun." At a very vague, surface level analysis, this seems like a fair assumption, except it does not hold up to any substantive level of analysis. For reference,
here is a goblin.