It's another rip-off in the making
Yes of course Cisco are changing their financial model at their customers expense. It's just that initially it doesn't look like it.
Ask the Cisco users if they feel ripped off when their third subscription payment is due which, I'm sure, will be inflation adjusted. What happens to the equipment if the subscription payment is late or stopped altogether? At least with the fully paid-up model everything continues to work.
The market for second-hand Cisco equipment will be interesting too if "subscriptions" are not transferable.
As usual the vendor will hold all of the cards.....