"These shares may be released early from these escrow...

"These shares may be released early from these escrow obligations to the extent required in order to dispose
of up to 33.3% of their escrowed Shares (in one or more transactions) after both the following conditions
have been satisfied:"

May - might or could
Up to - that number or less

So it is still at the holders discretion to sell the shares being released from escrow rather than a definite.