Stories spread in the week since Lind's first fight. While many doubted the extent of his body's strength, there were others who had heard of the story of his emergence from a Relic and surviving a conjured Gold Tier attack with just his body. The many young men and women were excited and several tried to get into the Divine Sword Sect camp to challenge him, but the rules forbid it.
What happened within a camp was a power's choice, but outsiders were not allowed to spar until after the tournament if they wished. The obvious avoidance of gathering intel on competitors or confirming exactly who had slots from what power was part of this separation.
Allies could of course share information if they wished but it was all up to each individual power.