Some context from the hiring side: not all employers can afford to pay top dollar for mid-senior level candidates, so the business proposition in those cases tend to be geared towards growth (i.e. either "grow the company and the employee together" or "I'll just gain some experience with this employer and job hop when my resume looks more solid"). This is more common on the lower end, which appears to be the case for this job description.

For more senior level, I agree. Senior level candidates have a lot of leverage and it's generally a bad idea for an employer to be a sneaky lowballer. Interviewees talk and job interview reputation can be a dealbreaker for many potential candidates before the process even starts for them.