TOP had the problem that all new parties did, that no one wants to waste their vote so they wouldn't vote for a party polling at 2% since they need 5% to get into parliament.

Suddenly a poll comes at the right time having them close to 5%, now people can see them actually getting in, so more people would answer the "if an election was held today, who would you vote for" question in their favour since it appears they may actually get in.