No. The reason the date was changed was because as of 1:00am PST on April 10th NO apple watch could be bought for release on April 24th. Apple did not want to confuse customers coming to the website for the first time to order.
Also, the 2 week delay between preorder and shipping is for manufacturing. They have 38 possible combinations and they have ZERO sales data on any of this. They needed some time to gauge the pre-orders. They knew what they could manufacture in 2 days, 5 days, 10 days, 14 days, etc.. hence the "shipping in 4-6 weeks" pre-orders, and "shipping in June" pre orders.