Most definitely not
It adds a sometimes rather large risk element for the heroes to get all the search tokens before sealing a victory often giving the overlord the opportunity to sneak in a win he might not have otherwise gotten if the heroes went straight for the victory conditions and not the search tokens.
It also gives the overlord an opportunity to limit the amount of gold the heroes obtain, limiting the gold the heroes get can be a massive advantage for the overlord.
As an overlord you cannot give the heroes in this game any slack what so ever or you will soon find them near-impossible to defeat. There is alot more leeway for the heroes than there is for the OL, so take up every opportunity you get to slow down their procreation of gold, experience points and relics.
Edited by BentoSan, 17 May 2014 - 01:47 PM.