Technically, if you skip the feature length theatrical movie, the four episode anime mini series, the dlc that is incredibly obviously cut content, and the side quests that take up 90% of the play time and offer no real relevance to the plot, you too are speedrunning FFXV.
However, if you do the emotional payoff at the end of the game will completely miss you, and you'll have wasted your time.
In this cohost user's opinion, the emotional payoff in Final Fantasy XV is top tier.