But, an installed application may be better for those who want the game to be much more realistic. The game can be improve significantly as server load will not be an important factor. As it is now, server load is the probably the limiting factor, which is why we have a very unrealistic game where the scores and so on seem to be determined by non-appropriate methods.
Why play a football manager simulation game using football managing skills if they outcome of the game is determine mostly by something else? That is poor simulation.