On the contrary.
The subscription model appeals to vendors as there such a strong lock-in effect. Buyers pay way more with this model, because the nature of people is non-action. With a subscription model, non-action means they stay on and keep paying, regardless of what is offered. With paid upgrades, the natural state of non-action would mean no more money coming in.
So there is very little incentive to do much for those already locked-in. What the vendor focuses on is to get new buyers to sign up, meaning they focus on bells-and-whistles, what ever is in fashion at the moment. They know that for every 100 new signed up, e.g. 45 will stay for more than 2 years without any new sales efforts, meaning more revenue with less spending on development and marketing.