Here's their schedule, I'll translate jt to you:
24/02:
13h00 20 Korean and 2 Thai took off a flight in Da Nang. They were take to Lung hospital on car (provided by us). When they came their, they didn't agree to be quarantined. Some want to go back to Korea, some wanted to be quaranted in a hotel, other want to keep traveling 2 days as they scheduled.
We explained they should be quarantined but they didn't agree. Only when talking with Korean Embasy did they agree to be quarantined
17h00 The Korean Embassy enform our hospital that they wanted to stay in a hotel at Son Tra island. But the hotel refused. Those people were served a light meal while the next solution was in process.
18h00 The Da Nang local authority decided to book a 4 star hotel in Hai Chau district. Our Health ministry decided to sterilize the whole hotel to welcome them. The city would pay for the accomodation.

This information was posted at 20h18 on 24/02, on the same day they arrived (before YTN posted those 2 videos on 25/2).

Therefore, the information didn't include the fact that the hotel in Hai Chau refused them as well. In conclusion, no 4 star hotel welcomed them.