If I were to quibble with them I’d say the high ends for each range go muuuuch higher, even outside of places like the SFBA or NYC.
Putting a team of professionals on a problem costs what it costs. If you put 8 of them on something for a month...
There is a point in the life of a SaaS company where that is not yet an absurdly small amount of time to redesign the main dashboard for a user.