Of the increase (“newly filling up”)… It helps to read a whole sentence rather than two words. This number is triple what it was two weeks ago. Triple it again, and there’s still no problem? (and that’s even if you pretend there’s no delay on test results, so the number is not at least 20-30% higher even if there’s only 2 days’ delay.)
We also have had growing testing shortages here the last couple weeks. Those are only the laboratory confirmed cases that are in hospitals. This doesn’t say the data is “wrong”, but it is clearly marked that it is not including all hospitalized covid19 cases.