its not really as simple since you are leaving out details like what's their Current HP after this fight? If they are all low then it probably won't be feasible to take the Drake (even if it is Cloud) and get out before the enemy team respawns and collapses, just saying it isn't quite as free as you may think if all are low hp.
If they are low hp then I would get some turret plates, reset and buy and then go to drake and see if the enemy team is there or not. Basically after that huge win you want to reset, buy and then force another team fight since (in theory) your team should be much stronger than the other team but we don't know what ulti's were used or what sums were used.
The safest play is to get the 1 plate, reset and get some pinks and setup for drake.
If they are all full and healthy already tho then just taking the drake would be fine