That's not actually what happened here, not to say rent-seeking won't happen in the future. R&D stopped well before acquisition, and since acquisition the main focus has been making the product scalable, reliable, and expanding to business users.
I can only assume based on your comments here and on other threads that you work/ed for LastPass, so I appreciate any insight you might lend.
I am still struggling with the idea that a company that was profitable selling licenses for $12/yr needed to then rise to $24/yr and again to $36/yr within the span of two years and somehow not be considered rent-seeking. You said this is to cater to enterprise users, and yet it's not the enterprise users that are bearing the brunt of the price increase. Absent any visibility into company workings, this feels like corporate overlords acquiring a product and declaring, "You are profitable, but our shareholders demand at least XX% profitability, so you need to make more profit, effective immediately."