> we're too lazy to take efforts to pronounce them correctly
On that part: as anecdotal as it is, as a lifelong native Japanese speaker myself, I can't pronounce random 日本語 appearing in the middle of English sentence without ceasing speech and partially "rebooting" my brain in the Japanese mode. And therefore, I don't really take an American or whoever non-native saying Japanese sooonahrmeey as particularly disrespectful or upsetting.
Some people get really upset when I'd say different languages implement thought processes, speech recognition, and speech pronunciation processes differently - but that's what languages are. So it's what it is.
As for use of tsunami over tidal waves, I'd agree that the latter is perfectly fine. Sprinkling tsunamis everywhere in media do feel a bit too clickbaity.