Yes, you did
Again, a simple copy from the link is sufficient: The committees, however, cannot compel the Executive Branch to disclose such information without satisfying the constitutional requirement that the information could serve a legitimate legislative purpose.
You can claim that you did not want to imply such thing but the end-result is that because you failed to carefully read the link that you posted, you DID imply it. In short, the part of the legal claim you wanted to cite applies as long as Trump is the president. In such case, since Trump opposes the submission of his taxes and ALSO controls the Executive Branch, you can have the situation described above where the committee can not compel the Exeutive Branch to disclose such information." With Biden president, there is not such concern.
And again, citing a source selectively by ignoring its conclusions does not support your point. The source is clear in its conclusion:
For the foregoing reasons, we conclude that the Secretary must comply with the Ways and Means Committee’s June 16, 2021 request pursuant to 26 U.S.C. § 6103(f)(1) to furnish the Committee with the specified tax returns and related tax information.