The Tablets are calibrated via the web site so that you can view exactly were you are on site/where you need to assign the task to the exact detail.
On the web page when creating a task this is not available. Therefore the user must download the GA specific to the area, print, Markup, upload and possibly attach a photo for clarification. Surely they should be replicated to an extent so that when someone is working off site they can still carry out their role efficiently. There is no doubt that the tablets are favored and will be more time resourceful for QA walk around's etc. therefore I don't see how adding this feature to the web page will effect the business approach of the tablet app.