So much has changed since then ... hasn't it? @ Jewel Changi Airport https://t.co/sfPAx3i1Dd
<a href="http://instagram.com" rel="nofollow">Instagram</a>
East Region
[{'url': 'https://t.co/sfPAx3i1Dd', 'expanded_url': 'https://www.instagram.com/p/CAxIKvUHdxh/?igshid=1vxbo9qadcv0m', 'display_url': 'instagram.com/p/CAxIKvUHdxh/…', 'indices': [69, 92]}]
CHANGI AIRPORT
['much', 'changed', 'since', '...', 'jewel', 'changi', 'airport', 'https://t.co/sfpax3i1dd']
['airport']
much since then jewel airport
much changed since jewel changi airport
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the Twitter post you provided does not mention anything related to maintenance report feedback for a public flat house. The phrase "much changed since jewel changi airport" is likely a general statement about the changes that have occurred since the Jewel Changi Airport was built, and does not pertain to any specific issue or feedback related to public housing.