34 strikes, assuming you somehow do every last one in 5 minutes with load-in and matchmaking times included, would take you 170 minutes or nearly 3 hours to max out your marks. 3 hours is a lot of time to just be grinding your nose against strikes, especially if you're doing it at breakneck pace. 99% of the people who play destiny would certainly want a break after 34 strikes. Of the 1% of players who can do 30+ strikes in a row without batting an eye, a majority of them wouldn't even bat an eye at a few lost marks. Assuming you'll still be able to earn marks from repeatable activities, what Bungie is trying to do here is limit the speed at which people hit end game, to avoid having sudden crashes where players are left wondering why it only took them 12 hours to hit the new cap of power, when they had spent some amount of the 1200 marks they had stored to fill in the spots that were left open from the items that they got from the faction packages that they got from edging their factions and pumping the last bit of experience into them. In other words. Relax. Just enjoy the game and don't focus so much on your marks. Destiny is a game, not a life or a job.