It's a bit of a mis-step from PD allowing this irregularity. The seasonals used to be a great way of keeping people playing GT5 - and talking about it, saying how good it was, and getting more people to buy it. If these seasonals aren't regular as clockwork, people are going to stop checking because they'll be too busy playing TDU2.
In short: "And you get new events every week" is a great selling point, but "You usually get new events every week but they're tailing off now so I don't know how long that's going to last" isn't at all.
In short: "And you get new events every week" is a great selling point, but "You usually get new events every week but they're tailing off now so I don't know how long that's going to last" isn't at all.