I wouldn't say nonsense, but the problems are different and maybe worse.

Below: Engines can strike the ground. There is more debris ingestion, ranging from sand and burst tires to people and baggage carts. Noise regulations are harder to satisfy.

Above: Failure causes nose-up (as power is lost), which may lead to a stall. The aircraft sits lower in the water after a water landing. Being nose-up may put the intakes in slow turbulent air flow, killing performance and possibly stalling the intakes. Ice and rain may come off the body, to be ingested by the engines.

Some things could go either way. Maintenance is going to involve a crane or a jack to get the engines off.