No, no it doesn’t. The cost of a game getting patches and updates isn’t the same as the cost of making the game in the first place.
Inflation affects physical goods because you need to make the product from the ground up every single time. And those materials cost money, and rise with inflation, so making the product from scratch each time gradually costs more as time goes on. Hence why they need to raise the price of the finished product - otherwise they'd literally lose money on each sale.
Digital goods don’t work this way, once the product has been made it can freely be distributed without having to be remade again and again.
Yes, it costs money to patch and update. But that’s not comparable to rebuilding the product from the ground up like with physical goods.
By your logic all movies, tv shows, and all other forms of digital goods should actually increase price with age, not decrease. Team Fortress 2 should be like $100 by now. After all, servers aren’t free.
Also, their wages come from sales. If they no longer have money to pay their employees then they should look towards developing new games, dlc, or merchandising. Artificially inflating the prices of existing goods isn’t the answer. There’s a reason that not even EA or Activision have pulled this.