How new are we talking?

Whether it's hotel rooms, offices, or apartments, it would be rare for a builder to check each and every item in a newly built structure. The first occupants are usually the ones who will find all the things that need to be fixed.

If this hotel has only been open a week or two, I'd bet these items are on some contractor's punch list. Or perhaps more likely, the hotel staff doesn't know about the problems because no guest has mentioned them.

(To be clear, guests shouldn't be responsible for reporting construction errors. But, that's just the reality of how many hotels are open...particularly limited/select-service hotels with smaller staffs.)

As for your questions, I personally wouldn't use one experience to generalize about all newly-built hotels.