The irony is that the ALR didn't used to have these restrictions placed on them. I can't remember the exact date, but it was some time in the mid-to-late 2000s that Money Saving Expert transport minister Lord Adonis made reference to the fact that the ALR undercut quite a few different long distance anytime returns and weekly season tickets (mainly those on the likes of then Virgin Trains, Cross Country and GNER/NXEC), which increased the uptake of the ALR quite significantly with long-distance commuters. Of course, these operators were very unhappy with losing out on revenue from the more expensive returns/weekly seasons, so pushed for restrictions to be added to the ALR to curb their usage in this way. In essence it's a very similar situation to the restrictions Virgin/Avanti added to off-peak tickets from Lancaster to London to avoid the undercutting of Preston to London anytime tickets that was happening several years ago.