The layout is not great, but I'd say SATA ports blocking airflow is a non-issue (because SATA cable airflow blockage is miniscule, I doubt it even has a measurable effect), and while the power connectors are oddly positioned, I don't think it's an actual deal breaker unless it's physically impossible to connect cables to them (e.g. because of cpu cooler blockage). Power cables should also only cause a miniscule airflow blockage.
Though it doesn't really matter to me personally, I agree it's an odd omission.