Who is the ‘they love in this logic of “how did they” let this go on so long?
The ‘they’d’ are an unscrupulous DPE and all of the unscrupulous pilots who loved the fact they THEY got an easy/incomplete/or nonexistent checkride and still walked away with their new ticket.

Some of the posters also need to actually read the document to understand how different certificates and such are handle or the scheduling is being arraigned (e.g. no you don’t need to take your PVT checkride again if you are flying a -777)