Does anyone else feel it's disengenuous to list the revenue per month for a company less than two years old? It seems like they could saturate a market and then

Does anyone else feel it's disengenuous to list the revenue per month for a company less than two years old? It seems like they could saturate a market and then assume that people will keep buying new planners. But how many planners are one time purchases? I think it's presumptuous to think they could maintain the revenue stream without more data.