Inflation doesn't change the actual power balance between different actors, it does make the situation more complex and harder to keep up with. It doesn't create real wealth and it is not responsible for a wealth transfer to wage earners. The idea just lacks a mechanism - for the wealth to come from employers or businesses they have to be ignorant, altruistic and disinterested in money. That seems unlikely. Ditto most other actors. Changing value of money favours people who can continuously adjust to it which isn't a typical wage earner.
If a generation gets something for free, they got it from somewhere else. Who lost out here? Why did it need to be inflation to make that happen? If they didn't get it for free, it is unclear why inflation would be necessary in the story instead of incidental.
Just like millennials love to claim boomers had it easy, it was a small slice of the pie that benefited.
Though to try and prevent misunderstandings - I do think inflation is bad for people who are paid wages. Market forces aren't perfect and "market price" is really a band of prices. Inflation pushes all workers to the low end of the band and means if anyone doesn't feel like negotiating they will be pushed in to a bad deal by default.