Complex sentence: Stoklasa points out that many of the decisions made by Jinn's character are highly questionable; he further points out that the character himself is unnecessary save to have a final climactic lightsaber battle.
Split into simpler sentences: Stoklasa points out that many of the decisions made by Jinn's character are highly questionable. He further suggests that the character is entirely unnecessary to the plot and overall story save to have a final climactic lightsaber battle.