Arsenal drew about 12 games in the league that season, Chelsea in their highest points season drew only about 5 and lost 1.
That Chelsea team and season was better imo. Finishing on a higher points tally and drawing significantly less is way better than not losing a game and drawing a lot, even though Chelsea only lost 1.
Arsenal were basically sacrificing everything to keep that record going. They were looking more to "not lose" rather than winning in the league and sacrificed all other competitions to get this achievement. Think that's one of the reasons why they were drawing a lot this season. It's still a big achievement though.