You didn't get a job.
It's probably just a rejection and you shouldn't read too much into it. In the last years plenty of companies started to invest in "employer banding". They want candidates to be happy with the experience of applying for a job, because
- These candidates have friends and family. And the company doesn't want the candidate to tell friends and family they are unprofessional
- Glassdoor reviews, kununu, etc...
- Candidates develop their skills too. A person who may not be a great fit now, can be a great fit 2 years later or even for a different position that springs up in a few months.
This type of emails doesn't mean anything apart from: you didn't get the job.