Easier, yes. But, as you know, it isn't difficult at all to reposition the texture to avoid seams. In Pete's piece there are a lot of large surfaces that, if they were made in solid wood, would be glued up of several narrower pieces. It wouldn't look right to have the same cathedral grain repeated across the width. Even with sawn veneer it wouldn't be the same going across the width.
My original question was asked because I see seamless wood material and the high realism that seems to be a goal in renderings for many folks as counter to each other.