Yes it should be such.
1) I've already an hard time to upload some maps with a jury-rigged internet connection
2) Too large maps are likely to be empty and uninteresting
3) Even if it was going to be detailed as hell, it would take too long to be made
4) It would allow to better compare map and follow up the transmission
Oh yes I suppose there should, if for no other reason images can't fit well on this site