He also said the technology still needed more testing before it can be considered for use in the Champions League.
He was joined by Ukrainian football legend Andriy Shevchenko to officially take possession of the Champions League trophy following the draw at UEFA's headquarters in Nyon, Switzerland.
Guardiola has said he wears a yellow ribbon to support imprisoned pro-independence politicians in his native Catalonia
The top four teams from England, Spain, Germany and Italy will now qualify automatically for the Champions League.
His UEFA counterpart Aleksander Ceferin said, however, that the system would not be used in next season’s UEFA Champions League.
He, however, said that he could not promise a return to the days when teams from Eastern Europe could dream of winning the flagship Champions League competition.
It said its aim was not about trying to get regular glamour matches against Europe’s top national teams.