Not really. There's nothing in the deal contingent on this and Twitter has no fiscal or regulatory responsibility to report which accounts are fully human or not human. Having APIs and allowing bots shows that Twitter is open about having bot accounts.
* The merger agreement contains a provision that allows Musk to walk away if Twitter’s securities filings are wrong — and this 5% number is in its securities filings — but only if the inaccuracy would have a "Material Adverse Effect" (MAE) on the company.
An MAE is apparently a high standard and courts [almost never find an MAE][2]
[1]: https://www.bloomberg.com/opinion/articles/2022-05-13/elon-m...
[3]: https://www.jonesday.com/en/insights/2018/10/delaware-chance...
It's not the same as what Musk has pulled in the past, but will still be interesting to see how it plays out regardless.