You don't really need them, but they exist and would show you where to put island chains. Also, hotspots on land can produce interesting features such as Mount Kilimanjaro and the Yellowstone geysers.
Not all plate boundaries are 'set in stone.' There tend to be folding zones where collisions happen. The areas labeled 'Diffuse boundary' on the map above shows zones of collistion impact; usually either centered on the line of separation of two plates moving apart (e.g. Africa/Nubia and Somalia plates separating forming the Great Rift Valley) or the folding zones from the most massive collisions. Note the region from North Africa to Iran; this folded region from the collision of Africa and Eurasia and the formed the mountains of the Alpine Orogeny, which themselves erased the former Paratethys sea.
These aren't strictly necessary, but when you have separating plates on land, you should shade an area of volcanic activity as a rift valley forms. If you have colliding plates on land, you should shade a folded zone of high mountains on the slower moving of the two colliders. For example, fast moving India is folding slower moving Eurasia to form the Himalaya; while the fast moving Nazca plate is folding the slower moving South American to form the Andes.
Its really pretty good
I only nit picked some things since an answer of 'no its good' is pretty boring. But it is good.