Pu Ji looked on with satisfaction as the underwater tension generator in front of him was completing the final steps of installation.
The Anlan people are an amphibian species, yes, but as civilization has progressed and technology has developed, they have become, in fact, essentially terrestrial beings. Aside from requiring small amounts of water to moisten their skin and respiratory organs, they are no longer truly aquatic creatures.
When technological advancement is needed, underwater environments are extremely unfavorable to the development of technology, unless the environment is very special; otherwise, land is more suitable for the development of technological civilization than water.
The people of Anlan Star have long since adapted to terrestrial environments. Being driven underwater is actually quite uncomfortable for them and genuinely threatens their safety.