Bug - PDF Tag Panel does not match Reading Order Tool by marking all Tags as Span
This issue of InDesign and Acrobat incompatibility in regards to Acrobat displaying all spans even when the Reading Order is correct has been around for over two years. We deserve to know what Adobe is doing about it.
Acrobat Team acknowledges the problem and blames InDesign:
"It's actually not an Acrobat issue, it's an issue with InDesign and how it's generating the Content that Acrobat is displaying correctly"
https://forums.adobe.com/message/10005333#10005333
InDesign Team acknowledges the problem and blames Acrobat:
"You'd have to talk to the Acrobat team about why they display in the Tags panel the way they do." - Adobe
https://forums.adobe.com/message/10225230#10225230
OR
"Our investigation suggests that the issue lies in the latest update of Acrobat and there is little that can be done at our end to resolve the issue.
The problem has been communicated to the relevant team.
In the meanwhile we are closing this thread for InDesign."
And closes the issue.
What is Adobe doing to fix this issue? And don’t tell us that it is not a real problem for screen readers because the Tags panel is ok. When a certain government agency reviews files, they just use the Reading Order Tool when they make complaints against people who use your product. These are not the kind of people who will read all these posts of Adobe blaming each other and then saying it does not matter because some screen readers don't use the reading order. Adobe is basically saying that this feature is pointless. If it is pointless remove it or merge it fully with the Tags panel.
Besides, there is a lot more assistive technology and applications than just JAWS and NVDA that depend on the reading order and reflow being correct.
What is Adobe doing to fix this span issue?
And don’t ask me for more info or more files. You have these posts with detailed explanations and you have already acknowledged the problem exists yourselves and acknowledged that you can reproduce it yourselves. And don’t tell us to go to Forums for help. Because they will send us back to UserVoice.
Thank you.

Hi,
I have escalated the issue to the Engineering Team and will get back to you once I get an update on this.
Thanks
Rachit
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Bevi Chagnon | PubCom.com commented
Dear Adobe,
Please FIX THE PROBLEM and stop blaming the other divisions.
This is costing governments worldwide millions of dollars to fix InDesign's PDFs by hand in Acrobat.
Now that you have viable competitors that can create compliant PDFs, don't throw your customer base under the bus! They will get up and run to your competition.
The problem began with the release of InDesign CC:2017.
Get the 3 programming teams together (InDesign, Acrobat & PDF Producer/Library) and figure out how to fix it.