Check the actual reviews.
(the link is for the past week, so will be less and less accurate to the july first start date as the days pass by)
The only two reviews related to the drama are specifically in reaction to the alleged review bombing. The other negative reviews don't mention anything related to the drama at all, and so the increase is probably just due to the streisand effect.
I'll list the two drama-related reviews here trimmed down to the drama-relevant parts only (not the full reviews):
"Drumming up fake drama about a review bombing that never happened to artificially inflate your positive review count through fan counteraction is gross."
— Full Review
"Wasn't gonna leave a review but Ludwig and Pirate Software cried review bombing so I'm leaving an honest review to combat the non-existent bombing."
— Full Review
As you can see by these excerpts, both of them were made AFTER the allegations of review bombing. They're not part of the review bombing itself that was being talked about.
Edit: fixed inaccurate -> accurate